FNUS55 KGGW 180732 FWFGGW Fire Weather Planning Forecast for Northeast Montana National Weather Service Glasgow MT 132 AM MDT Mon May 18 2026 .DISCUSSION... A troughing pattern will keep fire conditions low through early next week. Late in the week temperatures warm to the low 80s. MTZ134-182230- Northern Valley and Northern Phillips Counties- 132 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly cloudy (55-65 percent). Chance of thunder...0 percent. Max temperature.....44-49. Min humidity........53-58 percent. 20-foot winds.......North winds 5 to 15 mph. CWR (> 0.10 inch)...Less than 10 percent. .TONIGHT... Sky/weather.........Mostly cloudy (45-55 percent) then becoming partly cloudy (30-40 percent). Chance of thunder...0 percent. Min temperature.....24-29. Max humidity........91-96 percent. 20-foot winds.......Northeast winds 5 to 15 mph becoming east up to 5 mph after midnight, then becoming southeast early in the morning. CWR (> 0.10 inch)...Zero. .TUESDAY... Sky/weather.........Partly cloudy (30-40 percent). Chance of thunder...0 percent. Max temperature.....60-65. Min humidity........29-34 percent. 20-foot winds.......South winds 5 to 15 mph. CWR (> 0.10 inch)...Less than 10 percent. .Forecast days 3 through 7...... .WEDNESDAY...Mostly cloudy. A chance of showers and a slight chance of thunderstorms. Lows around 40. Highs in the mid 60s. Southwest winds 10 to 20 mph. .THURSDAY...Mostly cloudy. A slight chance of showers. Lows in the upper 30s. Highs in the lower 60s. Northwest winds 10 to 20 mph. .FRIDAY...Partly cloudy. Lows in the upper 30s. Highs in the upper 60s. West winds 10 to 15 mph. .SATURDAY...Partly cloudy. Lows in the lower 40s. Highs in the mid 70s. .SUNDAY...Partly cloudy. A slight chance of showers and thunderstorms. Lows in the mid 40s. Highs in the upper 70s. $$ MTZ135-182230- The Little Rockies- 132 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly cloudy (55-65 percent). Chance of thunder...0 percent. Max temperature.....51-56 valleys and 40-45 ridges. Min humidity........32-37 percent valleys and 45-50 percent ridges. 20-foot winds....... Lower elevation......North winds 5 to 15 mph. Ridge............North winds 10 to 20 mph. CWR (> 0.10 inch)...Less than 10 percent. .TONIGHT... Sky/weather.........Partly cloudy (20-30 percent). Chance of thunder...0 percent. Min temperature.....31-36 valleys and 24-29 ridges. Max humidity........71-76 percent. 20-foot winds....... Lower elevation......Downslope/downvalley 2-5 mph. Ridge............North winds 5 to 15 mph becoming northeast 5 to 10 mph late in the evening, then becoming south after midnight becoming southwest early in the morning. CWR (> 0.10 inch)...Zero. .TUESDAY... Sky/weather.........Partly cloudy (30-40 percent). Chance of thunder...0 percent. Max temperature.....65-70 valleys and 55-60 ridges. Min humidity........27-32 percent. 20-foot winds....... Lower elevation......Upslope/upvalley 2-5 mph becoming upslope/upvalley 4-8 mph late in the afternoon. Ridge............South winds 5 to 10 mph. CWR (> 0.10 inch)...Less than 10 percent. .Forecast days 3 through 7...... .WEDNESDAY...Mostly cloudy. A chance of showers and a slight chance of thunderstorms. Lows in the lower 40s. Highs in the lower 60s. West winds 10 to 15 mph. .THURSDAY...Mostly cloudy. A chance of showers. Lows in the lower 40s. Highs in the lower 60s. Northwest winds 5 to 15 mph. .FRIDAY...Partly cloudy. A slight chance of showers. Lows in the lower 40s. Highs in the upper 60s. Southwestwinds 5 to 10 mph. .SATURDAY...Partly cloudy. Lows in the upper 40s. Highs in the lower 70s. .SUNDAY...Partly cloudy. Lows in the lower 50s. Highs in the mid 70s. $$ MTZ136-182230- The Lower Missouri River Breaks including the Charles M Russell National Wildlife Refuge- 132 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly cloudy (65-75 percent). A slight chance of showers in the afternoon. Chance of thunder...0 percent. Max temperature.....47-52. Min humidity........47-52 percent. 20-foot winds....... Lower elevation......North winds 10 to 15 mph. Ridge............North winds 10 to 15 mph. CWR (> 0.10 inch)...10 percent. .TONIGHT... Sky/weather.........Mostly cloudy (45-55 percent) then becoming partly cloudy (35-45 percent). Chance of thunder...0 percent. Min temperature.....27-32. Max humidity........86-91 percent. 20-foot winds....... Lower elevation......North winds 5 to 15 mph early in the evening becoming downslope/downvalley 2-5 mph. Ridge............North winds 5 to 15 mph decreasing to up to 5 mph after midnight, then becoming southwest early in the morning. CWR (> 0.10 inch)...Less than 10 percent. .TUESDAY... Sky/weather.........Partly cloudy (30-40 percent). Chance of thunder...0 percent. Max temperature.....63-68. Min humidity........25-30 percent. 20-foot winds....... Lower elevation......Upslope/upvalley 2-5 mph. Ridge............South winds 5 to 10 mph. CWR (> 0.10 inch)...Zero. .Forecast days 3 through 7...... .WEDNESDAY...Mostly cloudy. A chance of showers. Lows in the lower 40s. Highs in the upper 60s. Southwest winds 5 to 15 mph. .THURSDAY...Mostly cloudy. A chance of showers. Lows in the lower 40s. Highs in the mid 60s. Northwest winds 5 to 15 mph. .FRIDAY...Partly cloudy. Lows in the lower 40s. Highs in the upper 60s. West winds 10 to 15 mph. .SATURDAY...Partly cloudy. Lows in the mid 40s. Highs in the mid 70s. .SUNDAY...Partly cloudy. A slight chance of showers. Lows around 50. Highs around 80. $$ MTZ137-182230- Southern Petroleum and Southern Garfield Counties- 132 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly cloudy (65-75 percent). Chance of thunder...0 percent. Max temperature.....46-51. Min humidity........48-53 percent. 20-foot winds....... Lower elevation......North winds 10 to 20 mph. Ridge............North winds 10 to 20 mph. CWR (> 0.10 inch)...Less than 10 percent. .TONIGHT... Sky/weather.........Mostly cloudy (50-60 percent) then becoming partly cloudy (40-50 percent). Chance of thunder...0 percent. Min temperature.....24-29. Max humidity........89-94 percent. 20-foot winds....... Lower elevation......North winds 5 to 15 mph decreasing to variable less than 5 mph late in the evening, then becoming downslope/downvalley 2-5 mph after midnight. Ridge............North winds 5 to 15 mph becoming northeast 5 to 10 mph late in the evening, then becoming southwest up to 5 mph after midnight. CWR (> 0.10 inch)...Less than 10 percent. .TUESDAY... Sky/weather.........Sunny (20-30 percent) then becoming partly cloudy (35-45 percent). Chance of thunder...0 percent. Max temperature.....62-67. Min humidity........23-28 percent. 20-foot winds....... Lower elevation......Upslope/upvalley 2-5 mph. Ridge............Southwest winds 5 to 10 mph. CWR (> 0.10 inch)...Zero. .Forecast days 3 through 7...... .WEDNESDAY...Mostly cloudy. A slight chance of showers. Lows around 40. Highs in the upper 60s. Southwest winds 5 to 15 mph. .THURSDAY...Mostly cloudy. A chance of showers. Lows around 40. Highs in the lower 60s. Northwest winds 5 to 15 mph. .FRIDAY...Partly cloudy. Lows around 40. Highs in the upper 60s. West winds 5 to 10 mph. .SATURDAY...Partly cloudy. Lows in the lower 40s. Highs in the mid 70s. .SUNDAY...Partly cloudy. Lows in the upper 40s. Highs around 80. $$ MTZ120-182230- Fort Peck Reservation and Daniels/Roosevelt/Sheridan Counties- 132 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly cloudy (75-85 percent). A slight chance of showers. Chance of thunder...0 percent. Max temperature.....43-48. Min humidity........61-66 percent. 20-foot winds.......North winds 10 to 15 mph. CWR (> 0.10 inch)...10 percent. .TONIGHT... Sky/weather.........Mostly cloudy (55-65 percent) then becoming partly cloudy (45-55 percent). Chance of thunder...0 percent. Min temperature.....25-30. Max humidity........94-99 percent. 20-foot winds.......North winds 5 to 15 mph decreasing to up to 5 mph early in the morning. CWR (> 0.10 inch)...Less than 10 percent. .TUESDAY... Sky/weather.........Partly cloudy (35-45 percent). Chance of thunder...0 percent. Max temperature.....58-63. Min humidity........27-32 percent. 20-foot winds.......West winds up to 5 mph becoming southwest 5 to 10 mph in the late morning and afternoon. CWR (> 0.10 inch)...Zero. .Forecast days 3 through 7...... .WEDNESDAY...Mostly cloudy. A chance of showers. Lows in the upper 30s. Highs in the upper 60s. South winds 5 to 15 mph. .THURSDAY...Mostly cloudy. A slight chance of showers. Lows around 40. Highs in the mid 60s. Northwest winds 5 to 15 mph. .FRIDAY...Partly cloudy. Lows in the upper 30s. Highs in the upper 60s. Northwest winds 10 to 15 mph. .SATURDAY...Partly cloudy. Lows in the lower 40s. Highs in the mid 70s. .SUNDAY...Partly cloudy. A slight chance of showers. Lows in the mid 40s. Highs around 80. $$ MTZ122-182230- Dawson/McCone/Prairie/Richland/Wibaux Counties- 132 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly cloudy (75-85 percent). A slight chance of showers. Chance of thunder...0 percent. Max temperature.....44-49. Min humidity........57-62 percent. 20-foot winds.......North winds 10 to 15 mph. CWR (> 0.10 inch)...10 percent. .TONIGHT... Sky/weather.........Mostly cloudy (55-65 percent). Chance of thunder...0 percent. Min temperature.....27-32. Max humidity........95-100 percent. 20-foot winds.......North winds 5 to 15 mph decreasing to up to 5 mph after midnight. CWR (> 0.10 inch)...Less than 10 percent. .TUESDAY... Sky/weather.........Partly cloudy (40-50 percent) then becoming sunny (15-25 percent). Chance of thunder...0 percent. Max temperature.....59-64. Min humidity........23-28 percent. 20-foot winds.......West winds up to 5 mph becoming southwest late in the afternoon. CWR (> 0.10 inch)...Zero. .Forecast days 3 through 7...... .WEDNESDAY...Partly cloudy. A slight chance of showers. Lows in the upper 30s. Highs in the lower 70s. South winds 5 to 15 mph. .THURSDAY...Mostly cloudy. A chance of showers. Lows in the lower 40s. Highs in the mid 60s. Northwest winds 5 to 15 mph. .FRIDAY...Partly cloudy. Lows around 40. Highs in the upper 60s. West winds 10 to 15 mph. .SATURDAY...Partly cloudy. Lows in the lower 40s. Highs in the mid 70s. .SUNDAY...Partly cloudy. A slight chance of showers. Lows in the upper 40s. Highs in the lower 80s. $$ weather.gov/glasgow