860
FNUS75 KBOI 170936
FWSBOI

Spot Forecast for Fox...FS
National Weather Service Boise ID
336 AM MDT Mon Aug 17 2026

Forecast is based on forecast start time of 0800 MDT on August 17.
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.

...WARM WITH LOWER HUMIDITY THROUGH MID WEEK...
...WEAK, ISOLATED SHOWERS AND THUNDERSTORMS IN AREA THIS AFTERNOON...

.DISCUSSION...
Warmer temperatures with lower humidity expected through mid-week,
then summer heat returns by the end of the week. Weak, isolated showers
and thunderstorms will develop in the area this afternoon, with localized
outflows up to 35 mph and brief rainfall possible. Storm activity will
taper off in the evening. Winds will generally remain diurnal today,
then breezy northwesterly winds expected tonight and Tuesday.

.REST OF TODAY (MONDAY)...

Sky/weather.........Cloudy. A 20 percent chance of showers and
                    thunderstorms in the afternoon.
Max temperature.....78 to 94. Coolest across northern areas,
                    warmest along southwest and southeast perimeters.
Min humidity........16 to 27 percent. Lowest along southern and
                    eastern areas. Highest on northwest flank.
CWR.................0 percent.
Wind - 20 foot......North 4 to 10 mph. Gusts around 18 mph in the
                    morning. Then, southerly 3 to 8 mph in the
                    afternoon (except light east-northeast for
                    northern part of the fire). Gusty and erratic
                    winds expected near thunderstorms in the afternoon.
Mixing height.......8000 ft AGL.
Transport winds.....Southwest around 10 mph.
Ventilation Index...800 excellent.

.TONIGHT...

Sky/weather.........Mostly cloudy. A 20 percent chance of showers
                    and thunderstorms in the evening.
Min temperature.....61 to 73. Warmest in southern areas, coolest
                    in northern areas.
Max humidity........38 to 58 percent. Lowest in southern areas,
                    highest along eastern and northern flanks.
CWR.................10 percent.
Wind - 20 foot......In the evening, becoming northwest 7 to 14 mph
                    with gusts to around 20 mph.
                    Gusty and erratic winds expected near thunderstorms
                    in the evening.
Mixing height.......200 ft AGL.
Transport winds.....Northwest around 5 mph.
Ventilation Index...10 poor.

.TUESDAY...

Sky/weather.........Mostly sunny.
Max temperature.....78 to 96. Coolest across northern areas,
                    warmest along southwest and southeast perimeters.
Min humidity........14 to 23 percent. Lowest along southern and
                    eastern areas. Highest on northwest flank.
CWR.................0 percent.
Wind - 20 foot......Northwest 6 to 12 mph, with gusts around 20 mph.
Mixing height.......12000 ft AGL.
Transport winds.....West around 10 mph.
Ventilation Index...1200 excellent.

$$
Forecaster...Henry
Requested by...Cody Collins
Type of request...WILDFIRE
.TAG 2619441.6/BOI
.DELDT 08/17/26
.FormatterVersion 2.0.0
.EMAIL danielsmith@blm.gov,cscollins@blm.gov