FNUS55 KSLC 181804 FWFSLC Fire Weather Planning Forecast for Utah National Weather Service Salt Lake City UT 1204 PM MDT Mon May 18 2026 ...TEMPERATURES STEADILY WARM THROUGH THE WEEK... .BROADCAST DISCUSSION...Showers will linger over northeast Utah through the afternoon. After temperatures up to 20F below normal today, temperatures will gradually warm through the remainder of the week, with conditions staying generally dry. .DISCUSSION...Lingering showers from the unseasonably cold system that moved across the state yesterday into this morning will continue into the afternoon, with generally dry conditions prevailing for the remainder of the upcoming week. Temperatures will gradually warm over the next several days, with highs averaging 10F above seasonal normals by the upcoming weekend. ***Thunderstorms imply strong, gusty and erratic winds*** ***All winds are 20 foot, 10-minute averages*** UTZ478-191215- Salt Lake Desert- 1204 PM MDT Mon May 18 2026 .TONIGHT... Sky/weather.........Partly cloudy (40-50% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....29-39 near 5000 feet. 24-33 near 8000 feet. 24 hr trend......3 degrees cooler. Max humidity........64-74% near 5000 feet. 60-70% near 8000 feet. 24 hr trend......1% wetter near 5000 feet. 14% drier near 8000 feet. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....North 15-20 mph. .TUESDAY... Sky/weather.........North of I-80, partly sunny (50-60% cloud cover) after 1200. South of I-80, sunny (15-25% cloud cover) after 1200. Chance lightning....0%. CWR.................0%. Max temperature.....56-63 near 5000 feet. 42-49 near 8000 feet. 24 hr trend......5 degrees warmer. Min humidity........18-28% near 5000 feet. 23-33% near 8000 feet. 24 hr trend......5% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....North 10-15 mph. Mixing height.......11300 ft AGL (70-80th Percentile). Clearing Index......810. .TUESDAY NIGHT... Sky/weather.........North of I-80, mostly cloudy (60-70% cloud cover) until 2400, then partly cloudy (30-40% cloud cover). South of I-80, mostly clear (15-25% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....33-43 near 5000 feet. 28-38 near 8000 feet. 24 hr trend......3 degrees warmer. Max humidity........48-58% near 5000 feet. 43-53% near 8000 feet. 24 hr trend......11% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Northwest 10-15 mph. .WEDNESDAY... Sky/weather.........Sunny (20-30% cloud cover) until 1200, then partly cloudy (40-50% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....63-70 near 5000 feet. 50-56 near 8000 feet. 24 hr trend......6 degrees warmer. Min humidity........14-24% near 5000 feet. 18-28% near 8000 feet. 24 hr trend......2% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Northwest 10-15 mph. Mixing height.......11300 ft AGL (70-80th Percentile). Clearing Index......820. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy. Scattered rain showers and isolated thunderstorms. Lows in the mid 40s. Highs in the upper 60s in the valleys and in the lower 50s in the mountains. Winds generally less than 15 mph. .FRIDAY...Partly cloudy. Lows in the lower 40s in the valleys and in the upper 30s in the mountains. Highs around 70 in the valleys and in the mid 50s in the mountains. Winds generally less than 15 mph. .SATURDAY...Partly cloudy. Lows in the upper 40s. Highs in the mid 70s in the valleys and in the lower 60s in the mountains. Winds generally less than 15 mph. .SUNDAY...Partly cloudy. Lows in the lower 50s. Highs in the lower 80s in the valleys and in the upper 60s in the mountains. .MONDAY...Mostly clear. Lows in the mid 50s. Highs in the mid 80s in the valleys and in the upper 60s in the mountains. = $$ UTZ479-191215- Wasatch Mountains- 1204 PM MDT Mon May 18 2026 .TONIGHT... Sky/weather.........Mostly cloudy (70-80% cloud cover) until 2400, then partly cloudy (40-50% cloud cover). South of I-80, scattered snow showers until 2400. Chance lightning....0%. CWR.................0% north of I-80 and 10% south of I-80. Min temperature.....23-33 near 5000 feet. 19-29 near 8000 feet. 24 hr trend......6 degrees cooler. Max humidity........71-81%. 24 hr trend......4% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....North around 15 mph. .TUESDAY... Sky/weather.........Partly sunny (55-65% cloud cover). South of I-80, isolated thunderstorms and snow showers after 1200. Chance lightning....0% increasing to 10% in the afternoon. CWR.................0%. Max temperature.....56-62 near 5000 feet. 41-51 near 8000 feet. 24 hr trend......7 degrees warmer. Min humidity........25-32% near 5000 feet. 37-47% near 8000 feet. 24 hr trend......16% drier near 5000 feet. 26% drier near 8000 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Northeast around 15 mph in the morning becoming light and variable. Mixing height.......8300 ft AGL (50-60th Percentile). Clearing Index......610. .TUESDAY NIGHT... Sky/weather.........Partly cloudy (30-40% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....27-37 near 5000 feet. 23-33 near 8000 feet. 24 hr trend......4 degrees warmer. Max humidity........65-75%. 24 hr trend......18% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Light and variable. .WEDNESDAY... Sky/weather.........Partly cloudy (35-45% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....62-71 near 5000 feet. 48-58 near 8000 feet. 24 hr trend......8 degrees warmer. Min humidity........18-28% near 5000 feet. 26-36% near 8000 feet. 24 hr trend......4% drier near 5000 feet. 12% drier near 8000 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Northwest around 10 mph. Mixing height.......9000 ft AGL (60-70th Percentile). Clearing Index......910. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Mostly cloudy. Numerous rain showers and scattered thunderstorms. Lows in the upper 30s in the valleys and in the mid 30s in the mountains. Highs in the mid 60s in the valleys and in the lower 50s in the mountains. West winds around 15 mph. .FRIDAY...Partly cloudy. Lows in the upper 30s in the valleys and in the lower 30s in the mountains. Highs in the upper 60s in the valleys and in the mid 50s in the mountains. Winds generally less than 15 mph. .SATURDAY...Mostly clear. Lows in the upper 30s. Highs in the mid 70s in the valleys and in the lower 60s in the mountains. Winds generally less than 15 mph. .SUNDAY...Mostly clear. Lows in the lower 40s. Highs around 80 in the valleys and in the upper 60s in the mountains. .MONDAY...Mostly clear. Lows in the mid 40s. Highs in the lower 80s in the valleys and in the upper 60s in the mountains. = $$ UTZ480-191215- Uinta Mountains- 1204 PM MDT Mon May 18 2026 .TONIGHT... Sky/weather.........Mostly cloudy (60-70% cloud cover). Scattered snow showers until 2400. Chance lightning....0%. CWR.................10%. Min temperature.....21-27 near 7000 feet. 11-20 near 9000 feet. 24 hr trend......8 degrees cooler. Max humidity........74-84% near 7000 feet. 84-94% near 9000 feet. 24 hr trend......9% drier near 7000 feet. 3% drier near 9000 feet. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....North 10-15 mph. .TUESDAY... Sky/weather.........Partly cloudy (40-50% cloud cover) until 1200, then mostly cloudy (80-90% cloud cover). Isolated snow showers until 1200. Scattered snow showers and isolated thunderstorms after 1200. Chance lightning....10% increasing to 20% in the afternoon. CWR.................30%. Max temperature.....46-52 near 7000 feet. 36-43 near 9000 feet. 24 hr trend......5 degrees warmer. Min humidity........32-38% near 7000 feet. 45-55% near 9000 feet. 24 hr trend......23% drier near 7000 feet. 17% drier near 9000 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Northeast around 10 mph in the morning becoming light and variable. Mixing height.......6200 ft AGL (40-50th Percentile). Clearing Index......370. .TUESDAY NIGHT... Sky/weather.........Mostly cloudy (70-80% cloud cover) until 2400, then partly cloudy (35-45% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....24-30 near 7000 feet. 14-24 near 9000 feet. 24 hr trend......3 degrees warmer. Max humidity........57-67% near 7000 feet. 69-79% near 9000 feet. 24 hr trend......16% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Light and variable. .WEDNESDAY... Sky/weather.........Partly cloudy (40-50% cloud cover) until 1200, then partly sunny (45-55% cloud cover). Isolated thunderstorms and snow showers after 1200. Chance lightning....0% increasing to 10% in the afternoon. CWR.................0%. Max temperature.....54-61 near 7000 feet. 44-52 near 9000 feet. 24 hr trend......9 degrees warmer. Min humidity........24-30% near 7000 feet. 33-43% near 9000 feet. 24 hr trend......13% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....North around 10 mph becoming west in the afternoon. Mixing height.......8300 ft AGL (50-60th Percentile). Clearing Index......790. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Numerous snow showers and scattered thunderstorms. Lows in the mid 30s in the valleys and in the upper 20s in the mountains. Highs in the upper 50s in the valleys and in the upper 40s in the mountains. Winds generally less than 15 mph. .FRIDAY...Partly cloudy. Scattered snow showers and isolated thunderstorms. Lows in the mid 30s in the valleys and in the upper 20s in the mountains. Highs in the lower 60s in the valleys and in the lower 50s in the mountains. Winds generally less than 15 mph. .SATURDAY...Partly cloudy. Isolated thunderstorms. Lows in the upper 30s in the valleys and in the lower 30s in the mountains. Highs in the upper 60s in the valleys and in the upper 50s in the mountains. Winds generally less than 15 mph. .SUNDAY...Mostly clear. Lows in the mid 40s in the valleys and in the mid 30s in the mountains. Highs in the lower 70s in the valleys and in the lower 60s in the mountains. .MONDAY...Mostly clear. Isolated showers and thunderstorms. Lows in the upper 40s in the valleys and around 40 in the mountains. Highs in the mid 70s in the valleys and in the mid 60s in the mountains. = $$ UTZ481-191215- Western Ashley National Forest- 1204 PM MDT Mon May 18 2026 .TONIGHT... Sky/weather.........Mostly cloudy (65-75% cloud cover). Scattered snow showers until 2400. Chance lightning....0%. CWR.................40%. Min temperature.....22-28 near 7000 feet. 12-22 near 10000 feet. 24 hr trend......8 degrees cooler. Max humidity........62-72% near 7000 feet. 71-81% near 10000 feet. 24 hr trend......2% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Light and variable becoming north around 10 mph after midnight. .TUESDAY... Sky/weather.........Partly cloudy (45-55% cloud cover) until 1200, then mostly cloudy (80-90% cloud cover). Isolated snow showers until 1200, then scattered snow showers and isolated thunderstorms. Chance lightning....10% increasing to 20% in the afternoon. CWR.................30%. Max temperature.....46-53 near 7000 feet. 32-40 near 10000 feet. 24 hr trend......4 degrees warmer. Min humidity........43-53% near 7000 feet. 52-62% near 10000 feet. 24 hr trend......5% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable. Mixing height.......5500 ft AGL (40-50th Percentile). Clearing Index......380. .TUESDAY NIGHT... Sky/weather.........Mostly cloudy (80-90% cloud cover) until 2400, then partly cloudy (35-45% cloud cover). Scattered snow showers until 2400. Chance lightning....0%. CWR.................10%. Min temperature.....24-30 near 7000 feet. 14-23 near 10000 feet. 24 hr trend......2 degrees warmer. Max humidity........52-62% near 7000 feet. 60-70% near 10000 feet. 24 hr trend......14% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Light and variable. .WEDNESDAY... Sky/weather.........Partly cloudy (40-50% cloud cover) until 1200, then partly sunny (50-60% cloud cover). Isolated thunderstorms and snow showers after 1200. Chance lightning....0% increasing to 10% in the afternoon. CWR.................0%. Max temperature.....54-61 near 7000 feet. 41-48 near 10000 feet. 24 hr trend......8 degrees warmer. Min humidity........31-41% near 7000 feet. 37-47% near 10000 feet. 24 hr trend......18% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable. Mixing height.......7700 ft AGL (50-60th Percentile). Clearing Index......700. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Mostly cloudy. Numerous snow showers and scattered thunderstorms. Lows in the mid 30s in the valleys and in the mid 20s in the mountains. Highs in the upper 50s in the valleys and in the mid 40s in the mountains. West winds around 15 mph. .FRIDAY...Partly cloudy. Scattered snow showers and isolated thunderstorms. Lows in the mid 30s in the valleys and in the mid 20s in the mountains. Highs around 60 in the valleys and in the upper 40s in the mountains. West winds around 15 mph. .SATURDAY...Partly cloudy. Isolated thunderstorms. Lows in the upper 30s in the valleys and around 30 in the mountains. Highs in the mid 60s in the valleys and in the lower 50s in the mountains. Winds generally less than 15 mph. .SUNDAY...Mostly clear. Isolated showers and thunderstorms. Lows in the lower 40s in the valleys and in the mid 30s in the mountains. Highs in the lower 70s in the valleys and in the upper 50s in the mountains. .MONDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the mid 40s in the valleys and in the upper 30s in the mountains. Highs in the mid 70s in the valleys and around 60 in the mountains. = $$ UTZ482-191215- Western Uintah Basin- 1204 PM MDT Mon May 18 2026 .TONIGHT... Sky/weather.........Mostly cloudy (75-85% cloud cover) until 2400, then partly cloudy (45-55% cloud cover). Scattered rain and snow showers until 2400. Patchy frost after 2400. Chance lightning....0%. CWR.................20%. Min temperature.....18-28. 24 hr trend......7 degrees cooler. Max humidity........78-88%. 24 hr trend......5% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Light and variable. .TUESDAY... Sky/weather.........Partly cloudy (45-55% cloud cover) until 1200, then partly sunny (55-65% cloud cover). Patchy frost until 1200. Isolated rain showers, thunderstorms and snow showers after 1200. Chance lightning....10% increasing to 20% in the afternoon. CWR.................0%. Max temperature.....48-54 near 6000 feet. 42-48 near 8000 feet. 24 hr trend......6 degrees warmer. Min humidity........41-51%. 24 hr trend......12% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable. Mixing height.......7700 ft AGL (50-60th Percentile). Clearing Index......520. .TUESDAY NIGHT... Sky/weather.........Mostly cloudy (60-70% cloud cover) until 2400, then mostly clear (20-30% cloud cover). Patchy frost after 2400. Chance lightning....0%. CWR.................0%. Min temperature.....29-35 near 6000 feet. 24-30 near 8000 feet. 24 hr trend......3 degrees warmer. Max humidity........70-80%. 24 hr trend......11% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....West around 10 mph in the evening becoming light and variable. .WEDNESDAY... Sky/weather.........Partly cloudy (35-45% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....57-63 near 6000 feet. 51-57 near 8000 feet. 24 hr trend......9 degrees warmer. Min humidity........28-38%. 24 hr trend......11% drier near 6000 feet. 16% drier near 8000 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable becoming west around 10 mph in the afternoon. Mixing height.......9100 ft AGL (60-70th Percentile). Clearing Index......770. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy. Scattered showers and thunderstorms. Lows in the mid 30s. Highs in the lower 60s in the valleys and in the mid 50s in the mountains. West winds around 15 mph. .FRIDAY...Partly cloudy. Lows in the mid 30s. Highs in the mid 60s in the valleys and in the upper 50s in the mountains. West winds around 15 mph. .SATURDAY...Partly cloudy. Lows in the upper 30s. Highs in the lower 70s in the valleys and in the lower 60s in the mountains. Winds generally less than 15 mph. .SUNDAY...Mostly clear. Lows in the lower 40s. Highs in the mid 70s in the valleys and in the upper 60s in the mountains. .MONDAY...Mostly clear. Lows in the upper 40s. Highs in the upper 70s in the valleys and around 70 in the mountains. = $$ UTZ483-191215- Southern Ashley National Forest- 1204 PM MDT Mon May 18 2026 .TONIGHT... Sky/weather.........Mostly cloudy (65-75% cloud cover). Scattered snow showers until 2400. Chance lightning....0%. CWR.................10%. Min temperature.....24-30 near 7000 feet. 18-24 near 9000 feet. 24 hr trend......7 degrees cooler. Max humidity........75-81% near 7000 feet. 84-94% near 9000 feet. 24 hr trend......3% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Light and variable. .TUESDAY... Sky/weather.........Partly sunny (60-70% cloud cover) until 1200, then partly cloudy (45-55% cloud cover). Isolated thunderstorms and snow showers after 1200. Chance lightning....0% increasing to 20% in the afternoon. CWR.................0%. Max temperature.....46-52 near 7000 feet. 37-43 near 9000 feet. 24 hr trend......7 degrees warmer. Min humidity........42-50% near 7000 feet. 53-63% near 9000 feet. 24 hr trend......23% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable. Mixing height.......6800 ft AGL (40-50th Percentile). Clearing Index......480. .TUESDAY NIGHT... Sky/weather.........Mostly cloudy (60-70% cloud cover) until 2400, then mostly clear (15-25% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....29-35 near 7000 feet. 24-30 near 9000 feet. 24 hr trend......5 degrees warmer. Max humidity........62-69% near 7000 feet. 68-78% near 9000 feet. 24 hr trend......14% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Light and variable. .WEDNESDAY... Sky/weather.........Partly cloudy (25-35% cloud cover) until 1200, then sunny (20-30% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....55-61 near 7000 feet. 46-52 near 9000 feet. 24 hr trend......9 degrees warmer. Min humidity........25-34% near 7000 feet. 31-41% near 9000 feet. 24 hr trend......16% drier near 7000 feet. 23% drier near 9000 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable. Mixing height.......9600 ft AGL (60-70th Percentile). Clearing Index......930. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy. Lows in the upper 30s in the valleys and in the mid 30s in the mountains. Highs in the lower 60s in the valleys and in the lower 50s in the mountains. West winds around 15 mph. .FRIDAY...Partly cloudy. Lows in the upper 30s in the valleys and in the mid 30s in the mountains. Highs in the mid 60s in the valleys and in the mid 50s in the mountains. West winds around 15 mph. .SATURDAY...Partly cloudy. Lows in the lower 40s in the valleys and in the upper 30s in the mountains. Highs in the upper 60s in the valleys and in the upper 50s in the mountains. Winds generally less than 15 mph. .SUNDAY...Mostly clear. Lows in the mid 40s. Highs in the lower 70s in the valleys and in the lower 60s in the mountains. .MONDAY...Partly cloudy. Lows around 50. Highs in the mid 70s in the valleys and in the mid 60s in the mountains. = $$ UTZ484-191215- Tavaputs Plateau- 1204 PM MDT Mon May 18 2026 .TONIGHT... Sky/weather.........Mostly cloudy (65-75% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....27-34 near 6000 feet. 21-30 near 8000 feet. 24 hr trend......7 degrees cooler. Max humidity........69-79% near 6000 feet. 77-87% near 8000 feet. 24 hr trend......6% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Northwest around 10 mph in the evening becoming light and variable. .TUESDAY... Sky/weather.........Partly sunny (65-75% cloud cover) until 1200, then partly cloudy (40-50% cloud cover). Chance lightning....10%. CWR.................0%. Max temperature.....52-58 near 6000 feet. 43-49 near 8000 feet. 24 hr trend......8 degrees warmer. Min humidity........35-45% near 6000 feet. 42-52% near 8000 feet. 24 hr trend......25% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable. Mixing height.......7400 ft AGL (40-50th Percentile). Clearing Index......580. .TUESDAY NIGHT... Sky/weather.........Mostly cloudy (45-55% cloud cover) until 2400, then mostly clear (10-20% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....32-39 near 6000 feet. 26-35 near 8000 feet. 24 hr trend......5 degrees warmer. Max humidity........64-74%. 24 hr trend......11% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Light and variable. .WEDNESDAY... Sky/weather.........Sunny (10-20% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....60-66 near 6000 feet. 52-58 near 8000 feet. 24 hr trend......8 degrees warmer. Min humidity........22-32% near 6000 feet. 26-36% near 8000 feet. 24 hr trend......15% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable becoming west around 10 mph in the afternoon. Mixing height.......9200 ft AGL (60-70th Percentile). Clearing Index......740. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy. Lows in the lower 40s in the valleys and in the mid 30s in the mountains. Highs in the upper 60s in the valleys and in the upper 50s in the mountains. Winds generally less than 15 mph. .FRIDAY...Partly cloudy. Lows in the lower 40s in the valleys and in the mid 30s in the mountains. Highs in the upper 60s in the valleys and around 60 in the mountains. Winds generally less than 15 mph. .SATURDAY...Partly cloudy. Lows in the mid 40s in the valleys and around 40 in the mountains. Highs in the lower 70s in the valleys and in the mid 60s in the mountains. Winds generally less than 15 mph. .SUNDAY...Mostly clear. Lows in the upper 40s in the valleys and in the mid 40s in the mountains. Highs in the upper 70s in the valleys and in the upper 60s in the mountains. .MONDAY...Mostly clear. Lows in the lower 50s in the valleys and in the upper 40s in the mountains. Highs in the lower 80s in the valleys and in the lower 70s in the mountains. = $$ UTZ488-191215- Manti National Forest- 1204 PM MDT Mon May 18 2026 .TONIGHT... Sky/weather.........Mostly cloudy (70-80% cloud cover) until 2400, then partly cloudy (40-50% cloud cover). Isolated snow showers until 2400. Chance lightning....0%. CWR.................0%. Min temperature.....23-33 near 6500 feet. 18-28 near 8500 feet. 24 hr trend......4 degrees cooler. Max humidity........77-87%. 24 hr trend......6% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Northwest around 10 mph in the evening becoming light and variable. .TUESDAY... Sky/weather.........Partly cloudy (30-40% cloud cover) until 1200, then mostly cloudy (65-75% cloud cover). Isolated rain showers, thunderstorms and snow showers after 1200. Chance lightning....0% increasing to 20% in the afternoon. CWR.................10%. Max temperature.....48-57 near 6500 feet. 36-46 near 8500 feet. 24 hr trend......7 degrees warmer. Min humidity........33-43% near 6500 feet. 44-54% near 8500 feet. 24 hr trend......16% drier near 6500 feet. 23% drier near 8500 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable. Mixing height.......6800 ft AGL (40-50th Percentile). Clearing Index......520. .TUESDAY NIGHT... Sky/weather.........Mostly cloudy (45-55% cloud cover) until 2400, then mostly clear (15-25% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....26-36 near 6500 feet. 22-31 near 8500 feet. 24 hr trend......4 degrees warmer. Max humidity........69-79%. 24 hr trend......13% drier near 6500 feet. 19% drier near 8500 feet. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Northwest around 10 mph in the evening becoming light and variable. .WEDNESDAY... Sky/weather.........Partly cloudy (25-35% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....56-66 near 6500 feet. 45-54 near 8500 feet. 24 hr trend......9 degrees warmer. Min humidity........19-27% near 6500 feet. 24-34% near 8500 feet. 24 hr trend......15% drier near 6500 feet. 20% drier near 8500 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Northwest around 10 mph in the morning becoming light and variable. Mixing height.......9100 ft AGL (60-70th Percentile). Clearing Index......880. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy. Lows in the upper 30s in the valleys and in the lower 30s in the mountains. Highs in the lower 60s in the valleys and in the lower 50s in the mountains. West winds around 15 mph. .FRIDAY...Partly cloudy. Lows in the upper 30s in the valleys and in the mid 30s in the mountains. Highs in the mid 60s in the valleys and in the mid 50s in the mountains. West winds around 15 mph. .SATURDAY...Partly cloudy. Lows in the lower 40s in the valleys and in the upper 30s in the mountains. Highs around 70 in the valleys and around 60 in the mountains. Winds generally less than 15 mph. .SUNDAY...Mostly clear. Lows in the upper 40s in the valleys and in the lower 40s in the mountains. Highs in the mid 70s in the valleys and in the mid 60s in the mountains. .MONDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the upper 40s. Highs in the mid 70s in the valleys and in the mid 60s in the mountains. = $$ UTZ489-191215- San Rafael Swell- 1204 PM MDT Mon May 18 2026 .TONIGHT... Sky/weather.........Mostly cloudy (60-70% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....33-41 near 5000 feet. 28-35 near 7000 feet. 24 hr trend......5 degrees cooler. Max humidity........64-74%. 24 hr trend......10% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Northwest around 10 mph in the evening becoming light and variable. .TUESDAY... Sky/weather.........Partly sunny (50-60% cloud cover). Chance lightning....10%. CWR.................0%. Max temperature.....61-67 near 5000 feet. 50-56 near 7000 feet. 24 hr trend......6 degrees warmer. Min humidity........23-29% near 5000 feet. 31-38% near 7000 feet. 24 hr trend......15% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable. Mixing height.......8800 ft AGL (50-60th Percentile). Clearing Index......830. .TUESDAY NIGHT... Sky/weather.........Mostly cloudy (55-65% cloud cover) until 2400, then mostly clear (15-25% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....37-43 near 5000 feet. 31-39 near 7000 feet. 24 hr trend......3 degrees warmer. Max humidity........59-69%. 24 hr trend......4% drier near 5000 feet. 11% drier near 7000 feet. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Light and variable becoming west around 10 mph after midnight. .WEDNESDAY... Sky/weather.........Partly cloudy (25-35% cloud cover) until 1200, then sunny (20-30% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....68-74 near 5000 feet. 57-63 near 7000 feet. 24 hr trend......7 degrees warmer. Min humidity........15-25%. 24 hr trend......8% drier near 5000 feet. 13% drier near 7000 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....West around 10 mph. Mixing height.......9400 ft AGL (60-70th Percentile). Clearing Index......750. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy. Lows in the lower 40s. Highs in the mid 70s in the valleys and in the mid 60s in the mountains. West winds around 15 mph. .FRIDAY...Mostly clear. Lows in the lower 40s. Highs in the upper 70s in the valleys and in the mid 60s in the mountains. Northwest winds around 15 mph. .SATURDAY...Partly cloudy. Lows in the upper 40s. Highs in the lower 80s in the valleys and around 70 in the mountains. Winds generally less than 15 mph. .SUNDAY...Mostly clear. Lows around 50. Highs in the mid 80s in the valleys and in the mid 70s in the mountains. .MONDAY...Mostly clear. Lows in the mid 50s. Highs in the upper 80s in the valleys and in the mid 70s in the mountains. = $$ UTZ492-191215- Central Utah West Desert- 1204 PM MDT Mon May 18 2026 .TONIGHT... Sky/weather.........Mostly cloudy (55-65% cloud cover) until 2400, then mostly clear (15-25% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....28-38 near 5000 feet. 22-31 near 8000 feet. 24 hr trend......1 degree cooler. Max humidity........61-71%. 24 hr trend......12% drier near 5000 feet. 19% drier near 8000 feet. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....North around 15 mph. .TUESDAY... Sky/weather.........Sunny (20-30% cloud cover) until 1200, then partly cloudy (25-35% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....59-65 near 5000 feet. 43-50 near 8000 feet. 24 hr trend......6 degrees warmer. Min humidity........17-27% near 5000 feet. 27-37% near 8000 feet. 24 hr trend......8% drier near 5000 feet. 21% drier near 8000 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Northeast 10-15 mph. Mixing height.......10800 ft AGL (70-80th Percentile). Clearing Index......1000. .TUESDAY NIGHT... Sky/weather.........Mostly clear (10-20% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....30-40 near 5000 feet. 25-35 near 8000 feet. 24 hr trend......3 degrees warmer. Max humidity........52-62% near 5000 feet. 48-58% near 8000 feet. 24 hr trend......11% drier near 5000 feet. 16% drier near 8000 feet. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....North 10-15 mph. .WEDNESDAY... Sky/weather.........Sunny (15-25% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....65-71 near 5000 feet. 51-57 near 8000 feet. 24 hr trend......7 degrees warmer. Min humidity........11-20% near 5000 feet. 17-27% near 8000 feet. 24 hr trend......5% drier near 5000 feet. 11% drier near 8000 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....North 10-15 mph. Mixing height.......10000 ft AGL (60-70th Percentile). Clearing Index......750. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Partly cloudy. Lows in the lower 40s in the valleys and in the upper 30s in the mountains. Highs in the lower 70s in the valleys and in the upper 50s in the mountains. West winds around 15 mph. .FRIDAY...Partly cloudy. Lows in the lower 40s in the valleys and in the upper 30s in the mountains. Highs in the mid 70s in the valleys and around 60 in the mountains. Winds generally less than 15 mph. .SATURDAY...Partly cloudy. Lows in the upper 40s. Highs around 80 in the valleys and in the mid 60s in the mountains. Winds generally less than 15 mph. .SUNDAY...Mostly clear. Lows in the lower 50s. Highs in the mid 80s in the valleys and in the upper 60s in the mountains. .MONDAY...Mostly clear. Lows in the mid 50s. Highs in the mid 80s in the valleys and around 70 in the mountains. = $$ UTZ493-191215- Central Utah Mountains- 1204 PM MDT Mon May 18 2026 .TONIGHT... Sky/weather.........Mostly cloudy (65-75% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....19-29. 24 hr trend......1 degree cooler. Max humidity........80-90% near 5000 feet. 70-80% near 8000 feet. 24 hr trend......10% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....North around 10 mph in the evening becoming light and variable. .TUESDAY... Sky/weather.........Partly cloudy (35-45% cloud cover) until 1200, then mostly cloudy (75-85% cloud cover). Isolated thunderstorms and snow showers after 1200. Chance lightning....10%. CWR.................0%. Max temperature.....57-63 near 5000 feet. 44-51 near 8000 feet. 24 hr trend......7 degrees warmer. Min humidity........30-34% near 5000 feet. 38-48% near 8000 feet. 24 hr trend......13% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable. Mixing height.......8000 ft AGL (50-60th Percentile). Clearing Index......600. .TUESDAY NIGHT... Sky/weather.........Mostly cloudy (65-75% cloud cover) until 2400, then mostly clear (10-20% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....24-34. 24 hr trend......4 degrees warmer. Max humidity........64-74% near 5000 feet. 57-67% near 8000 feet. 24 hr trend......17% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Light and variable. .WEDNESDAY... Sky/weather.........Sunny (15-25% cloud cover) until 1200, then partly cloudy (40-50% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....65-71 near 5000 feet. 53-59 near 8000 feet. 24 hr trend......8 degrees warmer. Min humidity........20-30%. 24 hr trend......12% drier near 5000 feet. 18% drier near 8000 feet. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable. Mixing height.......9300 ft AGL (60-70th Percentile). Clearing Index......820. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Mostly clear. Lows in the mid 30s. Highs in the lower 70s in the valleys and around 60 in the mountains. West winds around 15 mph. .FRIDAY...Partly cloudy. Lows in the upper 30s. Highs in the mid 70s in the valleys and in the lower 60s in the mountains. West winds around 15 mph. .SATURDAY...Partly cloudy. Lows in the lower 40s. Highs in the upper 70s in the valleys and in the mid 60s in the mountains. Winds generally less than 15 mph. .SUNDAY...Mostly clear. Lows in the mid 40s. Highs in the lower 80s in the valleys and in the upper 60s in the mountains. .MONDAY...Partly cloudy. Isolated showers and thunderstorms. Lows in the upper 40s. Highs in the mid 80s in the valleys and in the lower 70s in the mountains. = $$ UTZ494-191215- Henry Mountains- 1204 PM MDT Mon May 18 2026 .TONIGHT... Sky/weather.........Mostly cloudy (65-75% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....35-44 near 5000 feet. 31-38 near 8000 feet. 24 hr trend......4 degrees cooler. Max humidity........50-60% near 5000 feet. 60-70% near 8000 feet. 24 hr trend......6% drier. 20-foot winds.......North around 15 mph. 12K ft MSL winds....Light and variable. .TUESDAY... Sky/weather.........Partly cloudy (40-50% cloud cover) until 1200, then partly sunny (55-65% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....61-67 near 5000 feet. 46-56 near 8000 feet. 24 hr trend......4 degrees warmer. Min humidity........20-28% near 5000 feet. 34-44% near 8000 feet. 24 hr trend......9% drier. 20-foot winds.......North around 15 mph in the morning becoming upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable becoming southwest around 10 mph in the afternoon. Mixing height.......8500 ft AGL (40-50th Percentile). Clearing Index......850. .TUESDAY NIGHT... Sky/weather.........Mostly cloudy (60-70% cloud cover) until 2400, then mostly clear (15-25% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....38-48 near 5000 feet. 36-42 near 8000 feet. 24 hr trend......3 degrees warmer. Max humidity........50-60%. 24 hr trend......7% drier near 5000 feet. 14% drier near 8000 feet. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest around 10 mph. .WEDNESDAY... Sky/weather.........Partly cloudy (25-35% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....68-74 near 5000 feet. 53-63 near 8000 feet. 24 hr trend......7 degrees warmer. Min humidity........13-19% near 5000 feet. 23-31% near 8000 feet. 24 hr trend......8% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Southwest around 10 mph. Mixing height.......9400 ft AGL (50-60th Percentile). Clearing Index......820. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Mostly clear. Lows in the mid 40s. Highs in the mid 70s in the valleys and in the lower 60s in the mountains. Winds generally less than 15 mph. .FRIDAY...Mostly clear. Lows in the upper 40s. Highs in the upper 70s in the valleys and in the lower 60s in the mountains. Winds generally less than 15 mph. .SATURDAY...Partly cloudy. Lows around 50. Highs in the lower 80s in the valleys and in the mid 60s in the mountains. Winds generally less than 15 mph. .SUNDAY...Mostly clear. Lows in the lower 50s. Highs in the mid 80s in the valleys and in the upper 60s in the mountains. .MONDAY...Mostly clear. Lows in the mid 50s. Highs in the mid 80s in the valleys and in the lower 70s in the mountains. = $$ UTZ495-191215- Color Country West Desert- 1204 PM MDT Mon May 18 2026 .TONIGHT... Sky/weather.........Mostly clear (15-25% cloud cover). Areas of frost after 2400. Chance lightning....0%. CWR.................0%. Min temperature.....28-38. 24 hr trend......1 degree warmer. Max humidity........57-67%. 24 hr trend......24% drier near 5000 feet. 36% drier near 7000 feet. 20-foot winds.......Downslope/downvalley 5-10 mph. Gusts up to 25 mph in the evening. 12K ft MSL winds....North around 20 mph. .TUESDAY... Sky/weather.........Sunny (10-20% cloud cover). Areas of frost until 1200. Chance lightning....0%. CWR.................0%. Max temperature.....58-64 near 5000 feet. 49-56 near 7000 feet. 24 hr trend......6 degrees warmer. Min humidity........22-32%. 24 hr trend......11% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Northeast 10-15 mph. Mixing height.......9200 ft AGL (60-70th Percentile). Clearing Index......1000+. .TUESDAY NIGHT... Sky/weather.........Mostly clear (10-20% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....31-41. 24 hr trend......3 degrees warmer. Max humidity........51-61% near 5000 feet. 46-56% near 7000 feet. 24 hr trend......8% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....North around 10 mph. .WEDNESDAY... Sky/weather.........Sunny (5-15% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....66-72 near 5000 feet. 57-64 near 7000 feet. 24 hr trend......8 degrees warmer. Min humidity........14-20% near 5000 feet. 15-25% near 7000 feet. 24 hr trend......8% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....North around 10 mph in the morning becoming light and variable. Mixing height.......9400 ft AGL (60-70th Percentile). Clearing Index......830. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Mostly clear. Lows in the mid 30s in the valleys and in the lower 40s in the mountains. Highs in the mid 70s in the valleys and in the mid 60s in the mountains. Winds generally less than 15 mph. .FRIDAY...Partly cloudy. Lows in the upper 30s in the valleys and in the mid 40s in the mountains. Highs in the upper 70s in the valleys and in the upper 60s in the mountains. Winds generally less than 15 mph. .SATURDAY...Partly cloudy. Lows in the lower 40s in the valleys and in the upper 40s in the mountains. Highs in the lower 80s in the valleys and in the lower 70s in the mountains. Winds generally less than 15 mph. .SUNDAY...Mostly clear. Lows in the mid 40s in the valleys and in the lower 50s in the mountains. Highs in the mid 80s in the valleys and in the mid 70s in the mountains. .MONDAY...Mostly clear. Lows in the upper 40s in the valleys and in the mid 50s in the mountains. Highs in the mid 80s in the valleys and in the mid 70s in the mountains. = $$ UTZ496-191215- Color Country Mountains- 1204 PM MDT Mon May 18 2026 .TONIGHT... Sky/weather.........Mostly cloudy (50-60% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....25-35 near 6000 feet. 21-31 near 8000 feet. 24 hr trend......1 degree cooler. Max humidity........65-75%. 24 hr trend......11% drier near 6000 feet. 16% drier near 8000 feet. 20-foot winds.......North around 15 mph in the evening becoming downslope/downvalley 5-10 mph. 12K ft MSL winds....Light and variable. .TUESDAY... Sky/weather.........Partly cloudy (40-50% cloud cover) until 1200, then mostly cloudy (70-80% cloud cover). Chance lightning....10%. CWR.................0%. Max temperature.....56-66 near 6000 feet. 48-56 near 8000 feet. 24 hr trend......8 degrees warmer. Min humidity........22-32% near 6000 feet. 27-37% near 8000 feet. 24 hr trend......12% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable. Mixing height.......9200 ft AGL (60-70th Percentile). Clearing Index......980. .TUESDAY NIGHT... Sky/weather.........Mostly cloudy (60-70% cloud cover) until 2400, then mostly clear (5-15% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....30-40. 24 hr trend......4 degrees warmer. Max humidity........59-69%. 24 hr trend......11% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Light and variable. .WEDNESDAY... Sky/weather.........Sunny (15-25% cloud cover) until 1200, then partly cloudy (45-55% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....63-72 near 6000 feet. 55-62 near 8000 feet. 24 hr trend......7 degrees warmer. Min humidity........15-25%. 24 hr trend......10% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable. Mixing height.......10900 ft AGL (80-90th Percentile). Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Mostly clear. Lows in the lower 40s in the valleys and in the mid 30s in the mountains. Highs in the lower 70s in the valleys and in the mid 60s in the mountains. Winds generally less than 15 mph. .FRIDAY...Mostly clear. Lows in the mid 40s in the valleys and in the upper 30s in the mountains. Highs in the mid 70s in the valleys and in the mid 60s in the mountains. Northwest winds around 15 mph. .SATURDAY...Partly cloudy. Lows in the upper 40s in the valleys and in the lower 40s in the mountains. Highs in the upper 70s in the valleys and in the upper 60s in the mountains. Winds generally less than 15 mph. .SUNDAY...Mostly clear. Lows around 50 in the valleys and in the mid 40s in the mountains. Highs around 80 in the valleys and in the lower 70s in the mountains. .MONDAY...Mostly clear. Lows in the lower 50s in the valleys and in the upper 40s in the mountains. Highs around 80 in the valleys and in the lower 70s in the mountains. = $$ UTZ497-191215- Mojave Desert- 1204 PM MDT Mon May 18 2026 .TONIGHT... Sky/weather.........Mostly clear (5-15% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....46-53 near 3000 feet. 36-45 near 6000 feet. 24 hr trend......Unchanged. Max humidity........32-42% near 3000 feet. 37-47% near 6000 feet. 24 hr trend......15% drier near 3000 feet. 33% drier near 6000 feet. 20-foot winds.......North around 20 mph with gusts to around 35 mph in the evening becoming downslope/downvalley 5-10 mph. 12K ft MSL winds....North 10-15 mph. .TUESDAY... Sky/weather.........Sunny (5-15% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....73-79 near 3000 feet. 57-66 near 6000 feet. 24 hr trend......6 degrees warmer. Min humidity........11-15% near 3000 feet. 15-22% near 6000 feet. 24 hr trend......7% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Northeast around 10 mph in the morning becoming light and variable. Mixing height.......10500 ft AGL (50-60th Percentile). Clearing Index......1000+. .TUESDAY NIGHT... Sky/weather.........Mostly clear (5-15% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....49-58 near 3000 feet. 40-50 near 6000 feet. 24 hr trend......4 degrees warmer. Max humidity........27-37% near 3000 feet. 33-43% near 6000 feet. 24 hr trend......5% drier. 20-foot winds.......North around 15 mph with gusts to around 35 mph in the evening becoming downslope/downvalley 5-10 mph. 12K ft MSL winds....Light and variable. .WEDNESDAY... Sky/weather.........Sunny (5-15% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....79-86 near 3000 feet. 64-71 near 6000 feet. 24 hr trend......6 degrees warmer. Min humidity........7-13%. 24 hr trend......5% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable. Mixing height.......11400 ft AGL (60-70th Percentile). Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Mostly clear. Lows in the mid 50s in the valleys and in the upper 40s in the mountains. Highs in the upper 80s in the valleys and in the lower 70s in the mountains. Winds generally less than 15 mph. .FRIDAY...Mostly clear. Lows in the upper 50s in the valleys and in the lower 50s in the mountains. Highs around 90 in the valleys and in the mid 70s in the mountains. Winds generally less than 15 mph. .SATURDAY...Mostly clear. Lows in the lower 60s in the valleys and in the mid 50s in the mountains. Highs in the lower 90s in the valleys and in the mid 70s in the mountains. Winds generally less than 15 mph. .SUNDAY...Mostly clear. Lows in the lower 60s in the valleys and in the upper 50s in the mountains. Highs in the lower 90s in the valleys and in the upper 70s in the mountains. .MONDAY...Mostly clear. Lows in the mid 60s in the valleys and in the upper 50s in the mountains. Highs in the lower 90s in the valleys and in the upper 70s in the mountains. = $$ UTZ498-191215- Grand Staircase- 1204 PM MDT Mon May 18 2026 .TONIGHT... Sky/weather.........Partly cloudy (30-40% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....40-50 near 4000 feet. 31-41 near 6000 feet. 24 hr trend......4 degrees cooler. Max humidity........47-57% near 4000 feet. 52-62% near 6000 feet. 24 hr trend......1% drier near 4000 feet. 6% drier near 6000 feet. 20-foot winds.......North around 15 mph in the evening becoming downslope/downvalley 5-10 mph. 12K ft MSL winds....Light and variable becoming southwest around 10 mph after midnight. .TUESDAY... Sky/weather.........Partly cloudy (25-35% cloud cover) until 1200, then sunny (20-30% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....65-74 near 4000 feet. 59-68 near 6000 feet. 24 hr trend......5 degrees warmer. Min humidity........14-24%. 24 hr trend......6% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....South around 10 mph. Mixing height.......9700 ft AGL (60-70th Percentile). Clearing Index......1000+. .TUESDAY NIGHT... Sky/weather.........Partly cloudy (25-35% cloud cover). Chance lightning....0%. CWR.................0%. Min temperature.....43-52 near 4000 feet. 34-44 near 6000 feet. 24 hr trend......3 degrees warmer. Max humidity........41-51% near 4000 feet. 46-56% near 6000 feet. 24 hr trend......7% drier. 20-foot winds.......Downslope/downvalley 5-10 mph. 12K ft MSL winds....Southwest around 10 mph. .WEDNESDAY... Sky/weather.........Sunny (20-30% cloud cover). Chance lightning....0%. CWR.................0%. Max temperature.....71-81 near 4000 feet. 66-76 near 6000 feet. 24 hr trend......6 degrees warmer. Min humidity........9-19%. 24 hr trend......6% drier. 20-foot winds.......Upslope/upvalley 5-10 mph. 12K ft MSL winds....Light and variable. Mixing height.......11200 ft AGL (70-80th Percentile). Clearing Index......1000+. .FORECAST DAYS 3 THROUGH 7... .THURSDAY...Mostly clear. Lows around 50 in the valleys and in the lower 40s in the mountains. Highs in the lower 80s in the valleys and in the mid 70s in the mountains. Winds generally less than 15 mph. .FRIDAY...Mostly clear. Lows in the lower 50s in the valleys and in the mid 40s in the mountains. Highs in the mid 80s in the valleys and in the mid 70s in the mountains. Winds generally less than 15 mph. .SATURDAY...Mostly clear. Lows in the mid 50s in the valleys and in the upper 40s in the mountains. Highs in the upper 80s in the valleys and in the upper 70s in the mountains. Winds generally less than 15 mph. .SUNDAY...Mostly clear. Lows in the mid 50s in the valleys and in the upper 40s in the mountains. Highs around 90 in the valleys and in the lower 80s in the mountains. .MONDAY...Mostly clear. Lows in the upper 50s in the valleys and in the lower 50s in the mountains. Highs around 90 in the valleys and in the lower 80s in the mountains. = $$ .8-14 day outlook for Tuesday May 26 to Monday June 01 Temperature... Above Normal Precipitation... Above Normal = $$