FNUS75 KBOI 210803 FWSBOI Spot Forecast for Buckhorn...South Idaho National Weather Service Boise ID 203 AM MDT Mon Sep 21 2026 Forecast is based on forecast start time of 0500 MDT on September 21. If conditions become unrepresentative...contact the National Weather Service. Please contact our office at (208)334-9060, if you have questions or concerns with this forecast. ...WARMING THROUGH THURSDAY... ...SLIGHT CHANCE OF SHOWERS/STORMS TUESDAY EVENING... ...COLD FRONT LATER THIS WEEK... .DISCUSSION... Temperatures are expected to warm through Thursday, with Thursday being the hottest and driest day in the 7-day forecast. Warming trend is briefly interrupted by cloud cover on Tuesday, with a slight chance for rain showers and thunderstorms that evening. Storms could produce gusty outflow winds and locally heavy rainfall. A strong Pacific system arrives later this week, dropping temps sharply on Friday and Saturday to 15-20 degrees cooler than temperatures on Thursday. This system also brings a chance for rain and thunderstorms, though near the fire chances are 10-20%, increasing to the north of the area. The cold front will also bring gusty easterly winds on Thursday switching to Northwesterly Friday/Saturday. .REST OF TONIGHT... Sky/weather.........Clear. Min temperature.....43 to 48. Max humidity........63 to 68 percent. Wind - 20 foot......East around 6 mph. Mixing height.......200 ft AGL. Transport winds.....East around 5 mph. .TODAY... Sky/weather.........Sunny. Max temperature.....63 to 69. Min humidity........26 to 31 percent. Wind - 20 foot......Southeast 3 to 8 mph. Mixing height.......6000 ft AGL. Transport winds.....Southeast around 10 mph. .TONIGHT... Sky/weather.........Mostly cloudy. Min temperature.....47 to 52. Max humidity........52 to 57 percent. Wind - 20 foot......Southeast around 6 mph. Mixing height.......100 ft AGL. Transport winds.....East around 5 mph. .TUESDAY... Sky/weather.........Partly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Max temperature.....60 to 65. Min humidity........26 to 31 percent. Wind - 20 foot......Southeast 3 to 6 mph. Gusty and erratic winds expected near thunderstorms in the afternoon. Mixing height.......7500 ft AGL. Transport winds.....South around 10 mph. $$ Forecaster...Macfarlane Requested by...Daniel.benjamini@yahoo.com Type of request...WILDFIRE .TAG 2622174.1/BOI .DELDT 09/21/26 .FormatterVersion 2.0.0 .EMAIL daniel.benjamini@yahoo.com,idscc@firenet.gov,Daniel.benjamini@yahoo.com,daniel.benjamini@usda.gov