FNUS55 KBOI 180949 FWFBOI Fire Weather Planning Forecast for SW Idaho and SE Oregon National Weather Service Boise ID 349 AM MDT Mon May 18 2026 ...COOL AND BREEZY TODAY WITH ISOLATED AFTERNOON MOUNTAIN SHOWERS... ...SLIGHT WARMING AND DRYING TREND THROUGH FRIDAY... .DISCUSSION... * Southwest Idaho BLM (ID Zones 400, 420, 423, 424, 426)... Northerly flow aloft today will bring breezy northwesterly winds and cold temperatures. Temperatures will drop near freezing on Tuesday morning, with good overnight relative humidity recoveries. Conditions will dry out on Tuesday, with terrain driven winds and a warming trend through the end of the week. * Southwest Idaho Forest (ID Zones 401, 402, 403, 421)... Northerly flow aloft today will bring breezy northerly winds, isolated afternoon rain-snow showers and cold temperatures. Temperatures will drop below freezing on Tuesday morning, with excellent overnight relative humidity recoveries. Conditions will dry out on Tuesday, with terrain driven winds and a slight warming trend through the end of the week. * Southeast Oregon (OR Zones 670-675)...Northerly flow aloft today will bring breezy northerly winds, scattered afternoon showers, and cold temperatures. Temperatures will drop near freezing on Tuesday morning, with good overnight relative humidity recoveries. Conditions will dry out on Tuesday, with terrain driven winds and a slight warming trend through the end of the week. IDZ401-182230- Western Payette National Forest- 349 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Partly cloudy. A 20 percent chance of rain and snow showers in the afternoon. Chance of thunder...0 percent. Max temperature.....45 to 60. 24 hr trend......On average, 9 degrees warmer. Min humidity........28 to 43 percent. 24 hr trend......On average, 19 percent drier. 20-foot winds....... Valleys/lwr slopes...North 8 to 13 mph with gusts to 20 mph. Ridges/upr slopes....North 8 to 14 mph with gusts to 24 mph. CWR /0.10 inch/.....10 percent. Smoke Dispersal..... Mixing Height......7000-9000 ft AGL. Transport Winds....North 10 to 20 mph. .TONIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....27 to 39. 24 hr trend......On average, 2 degrees warmer. Max humidity........62 to 89 percent. 24 hr trend......On average, 9 percent drier. 20-foot winds....... Valleys/lwr slopes...North 9 to 15 mph. Gusts to 22 mph in the evening. Ridges/upr slopes....North 9 to 15 mph. Gusts to 26 mph in the evening. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......100-200 ft AGL. Transport Winds....Northeast 5 to 15 mph. .TUESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....48 to 63. 24 hr trend......On average, 4 degrees warmer. Min humidity........25 to 35 percent. 24 hr trend......On average, 4 percent drier. 20-foot winds....... Valleys/lwr slopes...Light upslope winds less than 8 mph. Ridges/upr slopes....Light winds less than 8 mph in the morning, becoming west 8 to 9 mph with gusts to 16 mph in the afternoon. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......8000-9500 ft AGL. Transport Winds....West 5 to 10 mph. $$ = IDZ402-182230- Eastern Payette National Forest- 349 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Partly cloudy. A 20 percent chance of rain and snow showers in the afternoon. Chance of thunder...0 percent. Max temperature.....40 to 55. 24 hr trend......On average, 7 degrees warmer. Min humidity........30 to 45 percent. 24 hr trend......On average, 19 percent drier. 20-foot winds....... Valleys/lwr slopes...North 8 to 11 mph with gusts to 18 mph. Ridges/upr slopes....North 8 to 12 mph with gusts to 20 mph. CWR /0.10 inch/.....10 percent. Smoke Dispersal..... Mixing Height......7000-9000 ft AGL. Transport Winds....North 10 to 15 mph. .TONIGHT... Sky/weather.........Partly cloudy. A 20 percent chance of snow showers in the evening. Chance of thunder...0 percent. Min temperature.....25 to 34. 24 hr trend......On average, 3 degrees warmer. Max humidity........66 to 80 percent. 24 hr trend......On average, 12 percent drier. 20-foot winds....... Valleys/lwr slopes...North 8 to 11 mph with gusts to 18 mph in the evening, becoming light downslope less than 8 mph after midnight. Ridges/upr slopes....North 8 to 13 mph with gusts to 20 mph in the evening, becoming light after midnight. CWR /0.10 inch/.....10 percent. Smoke Dispersal..... Mixing Height......100-200 ft AGL. Transport Winds....North up to 15 mph. .TUESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....46 to 61. 24 hr trend......On average, 6 degrees warmer. Min humidity........25 to 35 percent. 24 hr trend......On average, 5 percent drier. 20-foot winds....... Valleys/lwr slopes...Light upslope winds less than 8 mph in the morning, becoming west 8 to 9 mph with gusts to 16 mph in the afternoon. Ridges/upr slopes....Light winds less than 8 mph in the morning, becoming west 8 to 11 mph with gusts to 18 mph in the afternoon. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......8000-10000 ft AGL. Transport Winds....West 10 to 20 mph. $$ = IDZ403-182230- Northern Boise National Forest- 349 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Partly cloudy. A 20 percent chance of snow showers in the afternoon. Chance of thunder...0 percent. Max temperature.....44 to 58. 24 hr trend......On average, 7 degrees warmer. Min humidity........22 to 32 percent. 24 hr trend......On average, 12 percent drier. 20-foot winds....... Valleys/lwr slopes...North 8 to 13 mph with gusts to 16 mph. Ridges/upr slopes....North 8 to 13 mph with gusts to 20 mph. CWR /0.10 inch/.....10 percent. Smoke Dispersal..... Mixing Height......8500-10500 ft AGL. Transport Winds....North 10 to 20 mph. .TONIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....26 to 36. 24 hr trend......On average, 3 degrees warmer. Max humidity........56 to 80 percent. 24 hr trend......On average, 7 percent drier. 20-foot winds....... Valleys/lwr slopes...North 8 to 10 mph with gusts to 18 mph in the evening, becoming light downslope less than 8 mph after midnight. Ridges/upr slopes....Northeast 8 to 12 mph. Gusts to 20 mph in the evening. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......100-200 ft AGL. Transport Winds....Northeast 5 to 15 mph. .TUESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....47 to 61. 24 hr trend......On average, 3 degrees warmer. Min humidity........23 to 33 percent. 24 hr trend......On average, 2 percent wetter. 20-foot winds....... Valleys/lwr slopes...Light upslope winds less than 8 mph in the morning, becoming west around 8 mph in the afternoon. Ridges/upr slopes....Light winds less than 8 mph in the morning, becoming west 8 to 11 mph in the afternoon. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......8000-10000 ft AGL. Transport Winds....West 10 to 15 mph. $$ = IDZ421-182230- Southern Boise/Western Sawtooth NF, including the Camas Prairie- 349 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Partly cloudy. A 20 percent chance of snow showers in the afternoon. Chance of thunder...0 percent. Max temperature.....52 to 62, except 42 to 51 above 6500 feet. 24 hr trend......On average, 6 degrees warmer. Min humidity........19 to 29 percent. 24 hr trend......On average, 8 percent drier. 20-foot winds....... Valleys/lwr slopes...North 11 to 17 mph. Gusts to 26 mph in the morning, decreasing to 20 mph in the afternoon. Ridges/upr slopes....North 11 to 17 mph with gusts to 24 mph. CWR /0.10 inch/.....10 percent. Smoke Dispersal..... Mixing Height......9500-11500 ft AGL. Transport Winds....North 10 to 20 mph. .TONIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....27 to 36. 24 hr trend......On average, 4 degrees warmer. Max humidity........50 to 70 percent. 24 hr trend......On average, 7 percent drier. 20-foot winds....... Valleys/lwr slopes...North 8 to 13 mph with gusts to 22 mph in the evening, becoming light downslope less than 8 mph after midnight. Ridges/upr slopes....North 10 to 16 mph with gusts to 24 mph in the evening, becoming light after midnight. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......100-200 ft AGL. Transport Winds....Northeast 5 to 15 mph. .TUESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....54 to 64, except 45 to 54 above 6500 feet. 24 hr trend......On average, 2 degrees warmer. Min humidity........19 to 28 percent, except 25 to 35 percent above 6500 feet. 24 hr trend......On average, 3 percent wetter. 20-foot winds....... Valleys/lwr slopes...Light upslope winds less than 8 mph in the morning, becoming west 8 to 11 mph in the afternoon. Ridges/upr slopes....Light winds less than 8 mph in the morning, becoming west 8 to 11 mph in the afternoon. Gusts to 18 mph. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......8000-10000 ft AGL. Transport Winds....West 10 to 15 mph. $$ = IDZ400-182230- Northern Boise BLM- 349 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Sunny. Chance of thunder...0 percent. Max temperature.....57 to 69. 24 hr trend......On average, 7 degrees warmer. Min humidity........23 to 32 percent. 24 hr trend......On average, 7 percent drier. 20-foot winds....... Valleys/lwr slopes...North 8 to 11 mph with gusts to 20 mph. Ridges/upr slopes....North 8 to 12 mph with gusts to 22 mph. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......9000-10500 ft AGL. Transport Winds....North around 15 mph. .TONIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....37 to 42. 24 hr trend......On average, 2 degrees warmer. Max humidity........58 to 80 percent. 24 hr trend......On average, 5 percent drier. 20-foot winds....... Valleys/lwr slopes...North 8 to 13 mph. Gusts to 22 mph in the evening. Ridges/upr slopes....North 8 to 13 mph. Gusts to 24 mph in the evening. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......100-200 ft AGL. Transport Winds....North 5 to 15 mph. .TUESDAY... Sky/weather.........Sunny. Chance of thunder...0 percent. Max temperature.....61 to 72. 24 hr trend......On average, 3 degrees warmer. Min humidity........21 to 28 percent. 24 hr trend......On average, 3 percent drier. 20-foot winds....... Valleys/lwr slopes...Light upslope winds less than 8 mph. Ridges/upr slopes....Northwest 8 to 10 mph in the morning, becoming light in the afternoon. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......8000-10000 ft AGL. Transport Winds....West 5 to 10 mph. $$ = IDZ420-182230- Treasure Valley BLM- 349 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....65 to 70. 24 hr trend......On average, 6 degrees warmer. Min humidity........19 to 27 percent. 24 hr trend......On average, 6 percent drier. 20-foot winds....... Valleys/lwr slopes...Northwest 14 to 20 mph with gusts to 28 mph. Ridges/upr slopes....Northwest 14 to 20 mph. Gusts to 24 mph in the afternoon. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......9500-10500 ft AGL. Transport Winds....Northwest 15 to 25 mph. .TONIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....37 to 42. 24 hr trend......On average, 2 degrees warmer. Max humidity........63 to 79 percent. 24 hr trend......On average, unchanged. 20-foot winds....... Valleys/lwr slopes...Northwest 10 to 16 mph. Gusts to 24 mph in the evening. Ridges/upr slopes....Northwest 10 to 16 mph with gusts to 24 mph in the evening, becoming light after midnight. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......100-200 ft AGL. Transport Winds....Northwest 5 to 15 mph. .TUESDAY... Sky/weather.........Sunny. Chance of thunder...0 percent. Max temperature.....68 to 73. 24 hr trend......On average, 4 degrees warmer. Min humidity........16 to 24 percent. 24 hr trend......On average, 4 percent drier. 20-foot winds....... Valleys/lwr slopes...Light upslope winds less than 8 mph. Gusts to 14 mph in the afternoon. Ridges/upr slopes....Light winds less than 8 mph in the morning, becoming west around 8 mph in the afternoon. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......8500-10500 ft AGL. Transport Winds....Northwest 5 to 10 mph. $$ = IDZ424-182230- Western Twin Falls BLM- 349 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....59 to 68. 24 hr trend......On average, 6 degrees warmer. Min humidity........17 to 23 percent. 24 hr trend......On average, 5 percent drier. 20-foot winds....... Valleys/lwr slopes...Northwest 11 to 17 mph with gusts to 26 mph. Ridges/upr slopes....Northwest 11 to 17 mph. Gusts to 24 mph in the afternoon. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......10500-12000 ft AGL. Transport Winds....Northwest 15 to 20 mph. .TONIGHT... Sky/weather.........Mostly cloudy in the evening, then becoming partly cloudy after midnight. Chance of thunder...0 percent. Min temperature.....34 to 39. 24 hr trend......On average, 2 degrees warmer. Max humidity........49 to 69 percent. 24 hr trend......On average, 5 percent drier. 20-foot winds....... Valleys/lwr slopes...North 10 to 16 mph. Gusts to 24 mph in the evening. Ridges/upr slopes....Northwest 11 to 17 mph with gusts to 26 mph in the evening, becoming light after midnight. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......100-200 ft AGL. Transport Winds....North 10 to 15 mph. .TUESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....63 to 72. 24 hr trend......On average, 4 degrees warmer. Min humidity........14 to 20 percent. 24 hr trend......On average, 3 percent drier. 20-foot winds....... Valleys/lwr slopes...Light upslope winds less than 8 mph in the morning, becoming west 8 to 10 mph in the afternoon. Ridges/upr slopes....Light winds less than 8 mph in the morning, becoming west 8 to 11 mph with gusts to 18 mph in the afternoon. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......9000-11000 ft AGL. Transport Winds....West 10 to 15 mph. $$ = IDZ423-182230- Owyhee Mountains- 349 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Patchy blowing dust. Chance of thunder...0 percent. Max temperature.....53 to 66. 24 hr trend......On average, 7 degrees warmer. Min humidity........15 to 25 percent. 24 hr trend......On average, 14 percent drier. 20-foot winds....... Valleys/lwr slopes...North 17 to 23 mph with gusts to 34 mph. Ridges/upr slopes....North 17 to 23 mph with gusts to 28 mph. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......8500-10500 ft AGL. Transport Winds....North 15 to 30 mph. .TONIGHT... Sky/weather.........Mostly cloudy in the evening, then clearing. Chance of thunder...0 percent. Min temperature.....29 to 41. 24 hr trend......On average, 3 degrees warmer. Max humidity........57 to 73 percent. 24 hr trend......On average, 10 percent drier. 20-foot winds....... Valleys/lwr slopes...Northwest 10 to 16 mph. Gusts to 26 mph in the evening. Ridges/upr slopes....North 8 to 13 mph with gusts to 22 mph in the evening, becoming light after midnight. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......100-200 ft AGL. Transport Winds....Northwest 5 to 15 mph. .TUESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....58 to 70. 24 hr trend......On average, 5 degrees warmer. Min humidity........14 to 24 percent. 24 hr trend......On average, unchanged. 20-foot winds....... Valleys/lwr slopes...Light upslope winds less than 8 mph in the morning, becoming north around 8 mph in the afternoon. Ridges/upr slopes....Light winds less than 8 mph in the morning, becoming northwest around 8 mph with gusts to 16 mph in the afternoon. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......9500-11000 ft AGL. Transport Winds....West around 10 mph. $$ = IDZ426-182230- Southern Highlands- 349 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....54 to 63. 24 hr trend......On average, 7 degrees warmer. Min humidity........16 to 26 percent. 24 hr trend......On average, 14 percent drier. 20-foot winds....... Valleys/lwr slopes...Northwest 11 to 17 mph with gusts to 26 mph. Ridges/upr slopes....Northwest 11 to 17 mph. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......9000-11000 ft AGL. Transport Winds....North 10 to 20 mph. .TONIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....30 to 37. 24 hr trend......On average, 3 degrees warmer. Max humidity........59 to 73 percent. 24 hr trend......On average, 14 percent drier. 20-foot winds....... Valleys/lwr slopes...West 8 to 13 mph. Gusts to 24 mph in the evening. Ridges/upr slopes....Northwest 8 to 11 mph with gusts to 18 mph in the evening, becoming light after midnight. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......200-300 ft AGL. Transport Winds....West 5 to 15 mph. .TUESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....60 to 67. 24 hr trend......On average, 5 degrees warmer. Min humidity........16 to 24 percent. 24 hr trend......On average, 2 percent drier. 20-foot winds....... Valleys/lwr slopes...Northwest around 8 mph. Gusts to 16 mph in the afternoon. Ridges/upr slopes....Northwest around 8 mph. Gusts to 14 mph in the afternoon. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......10500-11000 ft AGL. Transport Winds....West 10 to 15 mph. $$ = ORZ675-182230- Baker Valley- 249 AM PDT Mon May 18 2026 .TODAY... Sky/weather.........Partly cloudy. A 20 percent chance of rain showers in the afternoon. Chance of thunder...0 percent. Max temperature.....57 to 64. 24 hr trend......On average, 9 degrees warmer. Min humidity........28 to 35 percent. 24 hr trend......On average, 11 percent drier. 20-foot winds....... Valleys/lwr slopes...Northwest 10 to 15 mph. Gusts to 24 mph in the afternoon. Ridges/upr slopes....North 10 to 15 mph with gusts to 18 mph. CWR /0.10 inch/.....10 percent. Smoke Dispersal..... Mixing Height......8500-9500 ft AGL. Transport Winds....North 10 to 20 mph. .TONIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....28 to 40. 24 hr trend......On average, unchanged. Max humidity........63 to 90 percent. 24 hr trend......On average, 7 percent drier. 20-foot winds....... Valleys/lwr slopes...North 10 to 15 mph with gusts to 22 mph in the evening, becoming light downslope less than 8 mph after midnight. Ridges/upr slopes....North 8 to 13 mph with gusts to 22 mph in the evening, becoming light after midnight. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......100-200 ft AGL. Transport Winds....Northwest 5 to 10 mph. .TUESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....62 to 68. 24 hr trend......On average, 4 degrees warmer. Min humidity........22 to 29 percent. 24 hr trend......On average, 5 percent drier. 20-foot winds....... Valleys/lwr slopes...Light upslope winds less than 8 mph. Ridges/upr slopes....Light winds less than 8 mph. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......8500-10000 ft AGL. Transport Winds....West 5 to 10 mph. $$ = ORZ674-182230- Northwestern Vale BLM- 249 AM PDT Mon May 18 2026 .TODAY... Sky/weather.........Partly cloudy. A 20 percent chance of rain showers in the afternoon. Chance of thunder...0 percent. Max temperature.....55 to 64. 24 hr trend......On average, 7 degrees warmer. Min humidity........21 to 31 percent. 24 hr trend......On average, 9 percent drier. 20-foot winds....... Valleys/lwr slopes...North 10 to 15 mph. Gusts to 24 mph in the afternoon. Ridges/upr slopes....North 10 to 15 mph with gusts to 24 mph. CWR /0.10 inch/.....10 percent. Smoke Dispersal..... Mixing Height......8500-10500 ft AGL. Transport Winds....North 10 to 20 mph. .TONIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....33 to 40. 24 hr trend......On average, 2 degrees warmer. Max humidity........56 to 72 percent. 24 hr trend......On average, 9 percent drier. 20-foot winds....... Valleys/lwr slopes...North 8 to 14 mph with gusts to 24 mph in the evening, becoming light downslope less than 8 mph after midnight. Ridges/upr slopes....North 10 to 15 mph. Gusts to 24 mph in the evening. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......100-200 ft AGL. Transport Winds....Northwest 5 to 15 mph. .TUESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....60 to 69. 24 hr trend......On average, 5 degrees warmer. Min humidity........17 to 27 percent. 24 hr trend......On average, 4 percent drier. 20-foot winds....... Valleys/lwr slopes...Light upslope winds less than 8 mph. Ridges/upr slopes....West 8 to 10 mph. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......8500-10500 ft AGL. Transport Winds....West 5 to 10 mph. $$ = ORZ673-182230- Central Canyonlands- 349 AM MDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....58 to 70. 24 hr trend......On average, 7 degrees warmer. Min humidity........21 to 27 percent. 24 hr trend......On average, 9 percent drier. 20-foot winds....... Valleys/lwr slopes...North 8 to 12 mph with gusts to 20 mph. Ridges/upr slopes....North 8 to 13 mph. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......9000-10500 ft AGL. Transport Winds....North around 15 mph. .TONIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....33 to 43. 24 hr trend......On average, unchanged. Max humidity........56 to 68 percent. 24 hr trend......On average, 7 percent drier. 20-foot winds....... Valleys/lwr slopes...North 8 to 12 mph with gusts to 20 mph in the evening, becoming light downslope less than 8 mph after midnight. Ridges/upr slopes....North 8 to 14 mph. Gusts to 22 mph in the evening. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......100-200 ft AGL. Transport Winds....Northwest 5 to 10 mph. .TUESDAY... Sky/weather.........Sunny. Chance of thunder...0 percent. Max temperature.....64 to 73. 24 hr trend......On average, 5 degrees warmer. Min humidity........18 to 23 percent. 24 hr trend......On average, 4 percent drier. 20-foot winds....... Valleys/lwr slopes...Light upslope winds less than 8 mph. Ridges/upr slopes....Northwest 8 to 10 mph in the morning, becoming light in the afternoon. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......10000-11500 ft AGL. Transport Winds....West 5 to 10 mph. $$ = ORZ672-182230- Southern Grasslands- 249 AM PDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....55 to 64. 24 hr trend......On average, 7 degrees warmer. Min humidity........16 to 24 percent. 24 hr trend......On average, 10 percent drier. 20-foot winds....... Valleys/lwr slopes...North 11 to 17 mph with gusts to 22 mph. Ridges/upr slopes....North 11 to 17 mph with gusts to 26 mph. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......8500-10500 ft AGL. Transport Winds....North 15 to 25 mph. .TONIGHT... Sky/weather.........Mostly cloudy in the evening, then clearing. Chance of thunder...0 percent. Min temperature.....31 to 37. 24 hr trend......On average, 3 degrees warmer. Max humidity........52 to 72 percent. 24 hr trend......On average, 15 percent drier. 20-foot winds....... Valleys/lwr slopes...North 8 to 12 mph in the evening, becoming light downslope less than 8 mph after midnight. Ridges/upr slopes....North 8 to 13 mph with gusts to 20 mph in the evening, becoming light after midnight. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......100-200 ft AGL. Transport Winds....North 5 to 10 mph. .TUESDAY... Sky/weather.........Mostly sunny. Chance of thunder...0 percent. Max temperature.....61 to 70. 24 hr trend......On average, 6 degrees warmer. Min humidity........12 to 20 percent. 24 hr trend......On average, 4 percent drier. 20-foot winds....... Valleys/lwr slopes...Light upslope winds less than 8 mph. Ridges/upr slopes....Light winds less than 8 mph. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......10000-11000 ft AGL. Transport Winds....West around 10 mph. $$ = ORZ671-182230- Steens Mountain- 249 AM PDT Mon May 18 2026 .TODAY... Sky/weather.........Partly cloudy. A 20 percent chance of rain and snow showers in the afternoon. Chance of thunder...0 percent. Max temperature.....49 to 61. 24 hr trend......On average, 7 degrees warmer. Min humidity........16 to 26 percent. 24 hr trend......On average, 11 percent drier. 20-foot winds....... Valleys/lwr slopes...North 8 to 12 mph. Ridges/upr slopes....North 8 to 12 mph. CWR /0.10 inch/.....10 percent. Smoke Dispersal..... Mixing Height......8000-10000 ft AGL. Transport Winds....North 10 to 15 mph. .TONIGHT... Sky/weather.........Mostly cloudy in the evening, then clearing. Chance of thunder...0 percent. Min temperature.....32 to 39. 24 hr trend......On average, 5 degrees warmer. Max humidity........47 to 60 percent. 24 hr trend......On average, 20 percent drier. 20-foot winds....... Valleys/lwr slopes...North 8 to 10 mph with gusts to 16 mph in the evening, becoming light downslope less than 8 mph after midnight. Ridges/upr slopes....North 8 to 10 mph in the evening, becoming light after midnight. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......100-200 ft AGL. Transport Winds....Northeast 5 to 10 mph. .TUESDAY... Sky/weather.........Sunny. Chance of thunder...0 percent. Max temperature.....55 to 67. 24 hr trend......On average, 6 degrees warmer. Min humidity........13 to 22 percent. 24 hr trend......On average, 5 percent drier. 20-foot winds....... Valleys/lwr slopes...Light upslope winds less than 8 mph. Gusts to 14 mph in the afternoon. Ridges/upr slopes....Light winds less than 8 mph in the morning, becoming west around 8 mph in the afternoon. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......8000-10000 ft AGL. Transport Winds....West around 10 mph. $$ = ORZ670-182230- Burns BLM- 249 AM PDT Mon May 18 2026 .TODAY... Sky/weather.........Partly cloudy. A 20 percent chance of rain showers in the afternoon. Chance of thunder...0 percent. Max temperature.....58 to 64. 24 hr trend......On average, 7 degrees warmer. Min humidity........12 to 21 percent. 24 hr trend......On average, 11 percent drier. 20-foot winds....... Valleys/lwr slopes...Light upslope winds less than 8 mph in the morning, becoming north 8 to 10 mph with gusts to 16 mph in the afternoon. Ridges/upr slopes....North 8 to 13 mph. CWR /0.10 inch/.....10 percent. Smoke Dispersal..... Mixing Height......9500-11000 ft AGL. Transport Winds....North 10 to 15 mph. .TONIGHT... Sky/weather.........Partly cloudy. Chance of thunder...0 percent. Min temperature.....28 to 36. 24 hr trend......On average, 2 degrees warmer. Max humidity........47 to 67 percent. 24 hr trend......On average, 16 percent drier. 20-foot winds....... Valleys/lwr slopes...North 8 to 10 mph in the evening, becoming light downslope less than 8 mph after midnight. Ridges/upr slopes....Northeast 8 to 11 mph. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......100-200 ft AGL. Transport Winds....North 5 to 10 mph. .TUESDAY... Sky/weather.........Sunny. Chance of thunder...0 percent. Max temperature.....63 to 69. 24 hr trend......On average, 6 degrees warmer. Min humidity........10 to 17 percent. 24 hr trend......On average, unchanged. 20-foot winds....... Valleys/lwr slopes...Light upslope winds less than 8 mph. Gusts to 14 mph in the afternoon. Ridges/upr slopes....Light winds less than 8 mph. Gusts to 14 mph in the afternoon. CWR /0.10 inch/.....0 percent. Smoke Dispersal..... Mixing Height......8500-10000 ft AGL. Transport Winds....Northwest around 10 mph. $$ = .FORECAST DAYS 3 THROUGH 7... .WEDNESDAY...Partly cloudy. Lows 34 to 45. Highs 58 to 73. Northwest winds up to 10 mph. .THURSDAY...Partly cloudy. Lows 35 to 46. Highs 63 to 78. North winds 10 to 15 mph. .FRIDAY...Partly cloudy. Lows 39 to 50. Highs 65 to 80. Northwest winds 10 to 15 mph. .SATURDAY...Partly cloudy. Lows 40 to 51. Highs 69 to 84. .SUNDAY...Mostly clear. Lows 41 to 52. Highs 70 to 85. $$ =