FNUS75 KBOI 222125
FWSBOI

Spot Forecast for Second Flat Coleman Creek Jackass Butte and...DOI
National Weather Service Boise ID
325 PM MDT Sat Aug 22 2026

Forecast is based on forecast start time of 0700 MDT on August 23. 
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.

...RED FLAG WARNING IN EFFECT UNTIL 11 PM MDT THIS EVENING FOR DRY 
AND BREEZY CONDITIONS...
...THUNDERSTORMS THROUGH THIS EVENING...

...STORMS POSSIBLE MONDAY AFTERNOON...
...BREEZY AND DRY WITH A WARMING TREND THRU TUESDAY...

.DISCUSSION...
Sunday will be about 5 degrees cooler than Saturday, though still
very dry with elevated gusts in the afternoons. Elevated gusts 
remain through early this week, generally out of the west to the 
southwest with sustained winds 8 to 12 mph and gusts up to 20 mph.
Through early this week, the best chance of storms in the area 
will be Monday afternoon and evening. Storms could produce gusty 
and erratic outflow winds, lightning and moderate rainfall. 
Temperatures warm through Tuesday around 90 degrees in the 
afternoon before another slight cooling trend later in the week.

.SUNDAY...

Sky/weather.........Partly sunny. 
Max temperature.....71 to 86. 
Min humidity........9 to 19 percent. 
CWR.................0 percent. 
Wind - 20 foot......West 8 to 14 mph with gusts to around 22 mph. 
Mixing height.......7500 ft AGL. 
Transport winds.....West around 10 mph. 
Ventilation Index...750 excellent. 

.SUNDAY NIGHT...

Sky/weather.........Cloudy. 
Min temperature.....45 to 60. 
Max humidity........26 to 46 percent. 
CWR.................0 percent. 
Wind - 20 foot......North 8 to 14 mph with gusts to around 20 mph. 
Mixing height.......200 ft AGL. 
Transport winds.....Northeast around 5 mph. 
Ventilation Index...10 poor. 

.MONDAY...

Sky/weather.........Mostly cloudy. A 20 percent chance of showers 
                    and thunderstorms in the afternoon. 
Max temperature.....74 to 89. 
Min humidity........11 to 21 percent. 
CWR.................0 percent. 
Wind - 20 foot......East 4 to 10 mph. Gusts up to 14 mph in the 
                    morning increasing to 20 mph in the afternoon. 
                    Gusty and erratic winds expected near 
                    thunderstorms in the afternoon. 
Mixing height.......8500 ft AGL. 
Transport winds.....Southwest around 10 mph. 
Ventilation Index...850 excellent. 

$$
Forecaster...Macfarlane
Requested by...Travis Clapp
Type of request...WILDFIRE
.TAG 2620252.0/BOI
.DELDT 08/23/26
.FormatterVersion 2.0.0
.EMAIL travis_clapp@ios.doi.gov