


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Pocatello, ID
Issued by NWS Pocatello, ID
319 FNUS55 KPIH 030847 FWFPIH Fire Weather Planning Forecast for Southeast Idaho National Weather Service Pocatello ID 247 AM MDT Wed Sep 3 2025 .DISCUSSION... * Central Idaho Dispatch Area weather impact summary (Zones 475 and 476)... ...INCREASING CHANCE OF SHOWERS AND THUNDERSTORMS... Critical to near-critical min RHs continue this afternoon. In addition, cumulus clouds today will produce more virga than any actual rain/storms with a small chance for wind gusts around 35 mph with a virga "shower" passing through. Monsoon moisture begins to increase on Thursday and Friday with a few more isolated, mostly dry, storms popping up each afternoon. The bulk of the moisture arrives on Saturday and will bring some cooler temperatures and scattered, wet storms. * East Idaho Dispatch Area weather impact summary (Zones 410...411 and 413)... ...INCREASING CHANCE OF SHOWERS AND THUNDERSTORMS... Critical to near-critical min RHs continue this afternoon. In addition, cumulus clouds today will produce more virga than any actual rain/storms with a small chance for wind gusts around 35 mph with a virga "shower" passing through. Monsoon moisture begins to increase on Thursday and Friday with a few more isolated, mostly dry, storms popping up each afternoon. The bulk of the moisture arrives on Saturday and will bring some cooler temperatures and scattered, wet storms. * South Central Idaho Dispatch Area weather impact summary (Zones 422...425 and 427)... ...INCREASING CHANCE OF SHOWERS AND THUNDERSTORMS... Critical to near-critical min RHs continue this afternoon. In addition, cumulus clouds today will produce more virga than any actual rain/storms with a small chance for wind gusts around 35 mph with a virga "shower" passing through. Monsoon moisture begins to increase on Thursday and Friday with a few more isolated, mostly dry, storms popping up each afternoon. The bulk of the moisture arrives on Saturday and will bring some cooler temperatures and scattered, wet storms. IDZ475-032245- East Salmon River Mountains/Salmon NF- 247 AM MDT Wed Sep 3 2025 .Today... * Sky/weather........Sunny. * Chc of thunder.....0 percent. * Max Temperature....81-88 valleys and 72-79 ridges. 24 hr trend......Little change. * Min Humidity.......13-21 percent. 24 hr trend......Little change. * 20ft winds......... Valleys/lwr slopes...Southeast around 4 mph shifting to the northwest 4 to 6 mph in the afternoon. Ridges/upr slopes....Southeast 4 to 5 mph shifting to the northwest 4 to 6 mph in the afternoon. * Chc Wetting Rain...0 percent. * Mixing Height......13000-14000 ft AGL. * Transport Winds....Light winds. .TONIGHT... * Sky/weather........Clear. Haze. * Chc of thunder.....0 percent. * Min Temperature....52-59. 24 hr trend......Little change. * Max Humidity.......38-46 percent. 24 hr trend......2 percent up. * 20ft winds......... Valleys/lwr slopes...Northwest 4 to 6 mph shifting to the west 4 to 5 mph after midnight. Ridges/upr slopes....North 4 to 7 mph. * Chc Wetting Rain...0 percent. * Mixing Height......0-1000 ft AGL. * Transport Winds....North around 10 mph in the evening becoming light. .THURSDAY... * Sky/weather........Mostly sunny. Haze. * Chc of thunder.....0 percent. * Max Temperature....78-85 valleys and 68-75 ridges. 24 hr trend......3 degrees down. * Min Humidity.......16-23 percent. 24 hr trend......3 percent up. * 20ft winds......... Valleys/lwr slopes...South 4 to 5 mph shifting to the northwest 5 to 8 mph in the afternoon. Ridges/upr slopes....Southwest 4 to 6 mph shifting to the northwest 5 to 8 mph in the afternoon. * Chc Wetting Rain...0 percent. * Mixing Height......11750-12750 ft AGL. * Transport Winds....Light winds becoming northwest around 10 mph in the afternoon. .Forecast days 3 through 7...... .FRIDAY...Mostly clear. Lows 46 to 53. Highs 71 to 78. Northeast winds 10 to 15 mph. .SATURDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 48 to 55. Highs 67 to 74. South winds 5 to 10 mph with gusts to around 15 mph. .SUNDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows 46 to 53. Highs 64 to 71. Southwest winds 5 to 10 mph with gusts to around 15 mph. .MONDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the upper 40s. Highs in the mid 60s. .TUESDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the mid 40s. Highs in the lower 60s. $$ IDZ476-032245- Lemhi and Lost River Range/Challis NF- 247 AM MDT Wed Sep 3 2025 .Today... * Sky/weather........Sunny. * Chc of thunder.....0 percent. * Max Temperature....82-89 valleys and 71-78 ridges. 24 hr trend......2 degrees up. * Min Humidity.......12-20 percent. 24 hr trend......Little change. * 20ft winds......... Valleys/lwr slopes...Northwest 4 to 8 mph. Ridges/upr slopes....Northwest 4 to 8 mph. Gusts up to 15 mph in the afternoon. * Chc Wetting Rain...0 percent. * Mixing Height......13000-14000 ft AGL. * Transport Winds....Light winds becoming northwest around 10 mph in the afternoon. .TONIGHT... * Sky/weather........Mostly clear. Haze after midnight. * Chc of thunder.....0 percent. * Min Temperature....51-58. 24 hr trend......Little change. * Max Humidity.......37-45 percent. 24 hr trend......3 percent up. * 20ft winds......... Valleys/lwr slopes...Northwest 4 to 8 mph. Ridges/upr slopes....Northwest 4 to 8 mph with gusts to around 15 mph. * Chc Wetting Rain...0 percent. * Mixing Height......0-1000 ft AGL. * Transport Winds....Light winds. .THURSDAY... * Sky/weather........Mostly sunny. Haze. * Chc of thunder.....0 percent. * Max Temperature....78-85 valleys and 67-74 ridges. 24 hr trend......4 degrees down. * Min Humidity.......14-21 percent valleys and 18-25 percent ridges. 24 hr trend......3 percent up. * 20ft winds......... Valleys/lwr slopes...Northwest 4 to 9 mph. Ridges/upr slopes....Northwest 4 to 9 mph. Gusts up to 15 mph in the afternoon. * Chc Wetting Rain...0 percent. * Mixing Height......11750-12750 ft AGL. * Transport Winds....Light winds becoming northwest around 10 mph in the afternoon. .Forecast days 3 through 7...... .FRIDAY...Mostly clear. Slight chance of showers. Lows 44 to 51. Highs 69 to 76. North winds 10 to 15 mph with gusts to around 20 mph. .SATURDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 47 to 54. Highs 65 to 72. Southwest winds 5 to 10 mph with gusts to around 15 mph. .SUNDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows 45 to 52. Highs 63 to 70. West winds 5 to 10 mph with gusts to around 15 mph. .MONDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the mid 40s. Highs in the mid 60s. .TUESDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the mid 40s. Highs in the lower 60s. $$ IDZ422-032245- Sawtooth Range/Northern Sawtooth NF- 247 AM MDT Wed Sep 3 2025 .Today... * Sky/weather........Mostly sunny then becoming partly cloudy. * Chc of thunder.....0 percent. * Max Temperature....83-90 valleys and 72-79 ridges. 24 hr trend......2 degrees up. * Min Humidity.......13-18 percent valleys and 15-23 percent ridges. 24 hr trend......Little change. * 20ft winds......... Valleys/lwr slopes...North 5 to 8 mph shifting to the southwest 4 to 6 mph in the afternoon. Ridges/upr slopes....Northwest 4 to 6 mph. * Chc Wetting Rain...0 percent. * Mixing Height......13250-14250 ft AGL. * Transport Winds....Light winds. .TONIGHT... * Sky/weather........Partly cloudy. * Chc of thunder.....0 percent. * Min Temperature....52-59. 24 hr trend......Little change. * Max Humidity.......38-46 percent. 24 hr trend......4 percent up. * 20ft winds......... Valleys/lwr slopes...North 4 to 8 mph. Ridges/upr slopes....Northwest 4 to 7 mph shifting to the north 5 to 8 mph after midnight. Gusts up to 15 mph after midnight. * Chc Wetting Rain...0 percent. * Mixing Height......0-1000 ft AGL. * Transport Winds....North around 10 mph. .THURSDAY... * Sky/weather........Partly cloudy. * Chc of thunder.....0 percent. * Max Temperature....79-86 valleys and 68-75 ridges. 24 hr trend......4 degrees down. * Min Humidity.......16-24 percent valleys and 20-28 percent ridges. 24 hr trend......5 percent up. * 20ft winds......... Valleys/lwr slopes...North 5 to 8 mph shifting to the southwest 4 to 6 mph in the afternoon. Ridges/upr slopes....North 4 to 7 mph shifting to the northwest 4 to 6 mph in the afternoon. * Chc Wetting Rain...0 percent. * Mixing Height......11500-12500 ft AGL. * Transport Winds....Light winds becoming west around 10 mph in the afternoon. .Forecast days 3 through 7...... .FRIDAY...Partly cloudy. Slight chance of showers. Lows 48 to 55. Highs 71 to 78. Northwest winds 10 to 15 mph with gusts to around 20 mph. .SATURDAY...Mostly cloudy. Chance of thunderstorms and slight chance of showers. Lows 49 to 56. Highs 63 to 70. West winds 5 to 10 mph with gusts to around 15 mph. .SUNDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms. Lows 44 to 51. Highs 65 to 72. West winds 5 to 10 mph with gusts to around 15 mph. .MONDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the mid 40s. Highs in the upper 60s. .TUESDAY...Partly cloudy with chance of showers. Lows in the mid 40s. Highs in the mid 60s. $$ IDZ425-032245- Middle Snake River Valley/Twin Falls BLM north of the Snake River- 247 AM MDT Wed Sep 3 2025 .Today... * Sky/weather........Mostly sunny. * Chc of thunder.....0 percent. * Max Temperature....Around 93. 24 hr trend......Little change. * Min Humidity.......13-18 percent. 24 hr trend......Little change. * 20ft winds.........East winds 5 to 8 mph shifting to the south 4 to 7 mph in the afternoon. Gusts up to 15 mph. * Chc Wetting Rain...0 percent. * Mixing Height......13000-14000 ft AGL. * Transport Winds....Northeast around 10 mph in the morning becoming light. .TONIGHT... * Sky/weather........Partly cloudy. * Chc of thunder.....0 percent. * Min Temperature....Around 59. 24 hr trend......Little change. * Max Humidity.......42-50 percent. 24 hr trend......5 percent up. * 20ft winds.........West winds 4 to 6 mph with gusts to around 15 mph shifting to the north after midnight. * Chc Wetting Rain...0 percent. * Mixing Height......0-1000 ft AGL. * Transport Winds....West around 10 mph. .THURSDAY... * Sky/weather........Partly cloudy. * Chc of thunder.....0 percent. * Max Temperature....Around 88. 24 hr trend......5 degrees down. * Min Humidity.......16-24 percent. 24 hr trend......5 percent up. * 20ft winds.........East winds 4 to 5 mph shifting to the southwest 4 to 6 mph with gusts to around 15 mph in the afternoon. * Chc Wetting Rain...0 percent. * Mixing Height......11000-12000 ft AGL. * Transport Winds....Light winds becoming west around 10 mph in the afternoon. .Forecast days 3 through 7...... .FRIDAY...Partly cloudy. Lows in the upper 50s. Highs in the mid 80s. Northeast winds 10 to 15 mph with gusts to around 20 mph. .SATURDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the upper 50s. Highs in the upper 70s. Northeast winds 5 to 10 mph with gusts to around 15 mph. .SUNDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms. Lows in the mid 50s. Highs around 80. Southeast winds 5 to 10 mph with gusts to around 15 mph. .MONDAY...Partly cloudy with slight chance of showers. Lows in the lower 50s. Highs around 80. .TUESDAY...Partly cloudy with slight chance of showers. Lows in the lower 50s. Highs in the mid 70s. $$ IDZ427-032245- Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River- 247 AM MDT Wed Sep 3 2025 .Today... * Sky/weather........Partly cloudy. * Chc of thunder.....0 percent. * Max Temperature....Around 91 valleys and 81-88 ridges. 24 hr trend......Little change. * Min Humidity.......13-18 percent. 24 hr trend......Little change. * 20ft winds......... Valleys/lwr slopes...North 4 to 8 mph. Ridges/upr slopes....North 4 to 8 mph. Gusts up to 15 mph in the afternoon. * Chc Wetting Rain...0 percent. * Mixing Height......12500-13500 ft AGL. * Transport Winds....Light winds becoming northeast around 10 mph in the afternoon. .TONIGHT... * Sky/weather........Partly cloudy. * Chc of thunder.....0 percent. * Min Temperature....57-64. 24 hr trend......Little change. * Max Humidity.......38-46 percent valleys and 33-41 percent ridges. 24 hr trend......6 percent up. * 20ft winds......... Valleys/lwr slopes...Northwest 5 to 8 mph shifting to the southwest 4 to 6 mph after midnight. Ridges/upr slopes....North 5 to 8 mph with gusts to around 15 mph shifting to the west 4 to 6 mph after midnight. * Chc Wetting Rain...0 percent. * Mixing Height......0-1000 ft AGL. * Transport Winds....Northwest around 10 mph shifting to the west after midnight. .THURSDAY... * Sky/weather........Partly cloudy. * Chc of thunder.....0 percent. * Max Temperature....Around 87 valleys and 77-84 ridges. 24 hr trend......4 degrees down. * Min Humidity.......18-26 percent. 24 hr trend......5 percent up. * 20ft winds......... Valleys/lwr slopes...Southwest 4 to 6 mph shifting to the northwest 5 to 8 mph in the afternoon. Ridges/upr slopes....West 4 to 8 mph. Gusts up to 15 mph in the afternoon. * Chc Wetting Rain...0 percent. * Mixing Height......11500-12500 ft AGL. * Transport Winds....West around 10 mph. .Forecast days 3 through 7...... .FRIDAY...Partly cloudy. Slight chance of showers. Lows 55 to 62. Highs 77 to 84. West winds 5 to 10 mph with gusts to around 15 mph. .SATURDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 55 to 62. Highs 70 to 77. Southwest winds 5 to 10 mph with gusts to around 15 mph. .SUNDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms. Lows 51 to 58. Highs 71 to 78. South winds 5 to 10 mph with gusts to around 15 mph. .MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the lower 50s. Highs in the mid 70s. .TUESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the lower 50s. Highs in the lower 70s. $$ IDZ410-032245- Upper Snake River Valley/Idaho Falls BLM- 247 AM MDT Wed Sep 3 2025 .Today... * Sky/weather........Sunny. * Chc of thunder.....0 percent. * Max Temperature....85-92. 24 hr trend......2 degrees up. * Min Humidity.......12-17 percent. 24 hr trend......Little change. * 20ft winds.........Northeast winds 5 to 8 mph shifting to the northwest 4 to 6 mph in the afternoon. Gusts up to 15 mph. * Chc Wetting Rain...0 percent. * Mixing Height......13250-14250 ft AGL. * Transport Winds....North around 10 mph. .TONIGHT... * Sky/weather........Mostly clear. * Chc of thunder.....0 percent. * Min Temperature....52-59. 24 hr trend......Little change. * Max Humidity.......44-52 percent. 24 hr trend......Little change. * 20ft winds.........West winds 4 to 6 mph shifting to the northeast 4 to 7 mph after midnight. Gusts up to 15 mph. * Chc Wetting Rain...0 percent. * Mixing Height......0-1000 ft AGL. * Transport Winds....Light winds becoming northeast around 10 mph after midnight. .THURSDAY... * Sky/weather........Mostly sunny. * Chc of thunder.....0 percent. * Max Temperature....82-89. 24 hr trend......4 degrees down. * Min Humidity.......13-21 percent. 24 hr trend......4 percent up. * 20ft winds.........Northeast winds 4 to 6 mph shifting to the northwest 4 to 7 mph in the afternoon. Gusts up to 15 mph. * Chc Wetting Rain...0 percent. * Mixing Height......12250-13250 ft AGL. * Transport Winds....Light winds becoming northwest around 10 mph in the afternoon. .Forecast days 3 through 7...... .FRIDAY...Mostly clear. Lows 49 to 56. Highs 77 to 84. Northeast winds 10 to 20 mph with gusts to around 25 mph. .SATURDAY...Partly cloudy. Chance of showers and slight chance of thunderstorms. Lows 49 to 56. Highs 73 to 80. Northeast winds 5 to 10 mph with gusts to around 15 mph. .SUNDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows 48 to 54. Highs 72 to 79. South winds 5 to 10 mph with gusts to around 15 mph. .MONDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the upper 40s. Highs in the mid 70s. .TUESDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the upper 40s. Highs in the lower 70s. $$ IDZ411-032245- Centennial Mountains and Snake River Range/Targhee NF- 247 AM MDT Wed Sep 3 2025 .Today... * Sky/weather........Sunny. * Chc of thunder.....0 percent. * Max Temperature....Around 87 valleys and 76-83 ridges. 24 hr trend......2 degrees up. * Min Humidity.......14-19 percent valleys and 15-23 percent ridges. 24 hr trend......Little change. * 20ft winds......... Valleys/lwr slopes...Northeast 4 to 5 mph shifting to the northwest in the afternoon. Ridges/upr slopes....North 4 to 6 mph. Gusts up to 15 mph in the afternoon. * Chc Wetting Rain...0 percent. * Mixing Height......11000-12000 ft AGL. * Transport Winds....Light winds becoming northwest around 10 mph in the afternoon. .TONIGHT... * Sky/weather........Clear. * Chc of thunder.....0 percent. * Min Temperature....50-57. 24 hr trend......Little change. * Max Humidity.......54-62 percent valleys and 41-49 percent ridges. 24 hr trend......Little change. * 20ft winds......... Valleys/lwr slopes...North 4 to 5 mph shifting to the northeast around 4 mph after midnight. Ridges/upr slopes....North 4 to 6 mph. Gusts up to 15 mph in the evening. * Chc Wetting Rain...0 percent. * Mixing Height......100-1100 ft AGL. * Transport Winds....North around 10 mph. .THURSDAY... * Sky/weather........Mostly sunny. * Chc of thunder.....0 percent. * Max Temperature....Around 84 valleys and 72-79 ridges. 24 hr trend......5 degrees down. * Min Humidity.......18-26 percent. 24 hr trend......3 percent up. * 20ft winds......... Valleys/lwr slopes...Northeast around 4 mph shifting to the northwest 4 to 6 mph in the afternoon. Ridges/upr slopes....North 4 to 8 mph. Gusts up to 15 mph in the afternoon. * Chc Wetting Rain...0 percent. * Mixing Height......10750-11750 ft AGL. * Transport Winds....North 10 to 15 mph. .Forecast days 3 through 7...... .FRIDAY...Mostly clear. Lows 44 to 51. Highs 68 to 75. North winds 10 to 15 mph with gusts to around 25 mph. .SATURDAY...Mostly clear. Chance of showers and slight chance of thunderstorms. Lows 44 to 51. Highs 67 to 74. Northeast winds 5 to 10 mph with gusts to around 15 mph. .SUNDAY...Mostly cloudy. Chance of showers and slight chance of thunderstorms. Lows 46 to 53. Highs 63 to 70. South winds 5 to 10 mph with gusts to around 15 mph. .MONDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the mid 40s. Highs in the mid 60s. .TUESDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the mid 40s. Highs in the mid 60s. $$ IDZ413-032245- Caribou Range/Caribou NF- 247 AM MDT Wed Sep 3 2025 .Today... * Sky/weather........Sunny. * Chc of thunder.....0 percent. * Max Temperature....85-92 valleys and 78-85 ridges. 24 hr trend......2 degrees up. * Min Humidity.......13-18 percent. 24 hr trend......Little change. * 20ft winds......... Valleys/lwr slopes...North 4 to 6 mph. Ridges/upr slopes....East 4 to 6 mph shifting to the northwest 4 to 7 mph with gusts to around 15 mph in the afternoon. * Chc Wetting Rain...0 percent. * Mixing Height......12500-13500 ft AGL. * Transport Winds....Light winds. .TONIGHT... * Sky/weather........Mostly clear. * Chc of thunder.....0 percent. * Min Temperature....52-59. 24 hr trend......Little change. * Max Humidity.......43-51 percent valleys and 38-46 percent ridges. 24 hr trend......2 percent up. * 20ft winds......... Valleys/lwr slopes...North 4 to 6 mph shifting to the northeast 4 to 5 mph after midnight. Ridges/upr slopes....North 4 to 7 mph. Gusts up to 15 mph in the evening. * Chc Wetting Rain...0 percent. * Mixing Height......0-1000 ft AGL. * Transport Winds....Light winds. .THURSDAY... * Sky/weather........Mostly sunny then becoming partly cloudy. * Chc of thunder.....0 percent. * Max Temperature....79-86. 24 hr trend......4 degrees down. * Min Humidity.......16-24 percent. 24 hr trend......4 percent up. * 20ft winds......... Valleys/lwr slopes...East around 4 mph shifting to the west 4 to 7 mph in the afternoon. Ridges/upr slopes....Southeast 4 to 5 mph shifting to the northwest 5 to 8 mph with gusts to around 15 mph in the afternoon. * Chc Wetting Rain...0 percent. * Mixing Height......12250-13250 ft AGL. * Transport Winds....Light winds becoming west around 10 mph in the afternoon. .Forecast days 3 through 7...... .FRIDAY...Partly cloudy. Lows 50 to 57. Highs 74 to 81. South winds 5 to 10 mph with gusts to around 20 mph. .SATURDAY...Partly cloudy. Chance of showers and thunderstorms. Lows 49 to 56. Highs 69 to 76. South winds 5 to 10 mph with gusts to around 15 mph. .SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows 47 to 54. Highs 69 to 76. South winds 5 to 10 mph with gusts to around 20 mph. .MONDAY...Partly cloudy with chance of showers and slight chance of thunderstorms. Lows in the upper 40s. Highs in the lower 70s. .TUESDAY...Partly cloudy with slight chance of showers and thunderstorms. Lows in the upper 40s. Highs in the lower 70s. $$ .OUTLOOK for Wednesday, September 10th through Tuesday, September 16th: NEAR NORMAL temperatures and ABOVE NORMAL precipitation. $$