125 
FNUS75 KBOI 271044
FWSBOI

Spot Forecast for Cold RX...USFS
National Weather Service Boise ID
444 AM MDT Sat Sep 27 2025

Forecast is based on ignition time of 0600 MDT on September 27. 
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.

...DRY AND WARM UNTIL SUNDAY EVENING...
...COLDER WITH WETTING RAINS BEGINNING SUNDAY NIGHT...

.DISCUSSION...
Warming to 10 degrees above normal by Sunday afternoon, with 
consistent dryness and mild winds. Sunday evening precipitation 
chances increase through Friday. CWRs stay above 60% for multiple 
days early this week, while temps cool 5-10 degrees each day to 
Wednesday. Embedded storms are possible in widespread showers. Min
RHs sharply moisten Monday.

.TODAY...

Sky/weather.........Sunny. 
Max temperature.....68 to 73. 
Min humidity........20 to 25 percent. 
CWR.................0 percent. 
Wind - 20 foot......Northeast 3 to 5 mph in the morning shifting to 
                    the south around 5 mph in the afternoon. 
Mixing height.......2500 ft AGL. 
Transport winds.....South around 15 mph. 
Ventilation Index...375 fair. 

.TONIGHT...

Sky/weather.........Mostly clear. 
Min temperature.....46 to 51. 
Max humidity........45 to 50 percent. 
CWR.................0 percent. 
Wind - 20 foot......South around 4 mph in the evening shifting to 
                    the north 3 to 5 mph overnight. 
Mixing height.......100 ft AGL. 
Transport winds.....East around 5 mph. 
Ventilation Index...5 poor. 

.SUNDAY...

Sky/weather.........Sunny. 
Max temperature.....73 to 78. 
Min humidity........19 to 24 percent. 
CWR.................0 percent. 
Wind - 20 foot......Northeast 3 to 5 mph in the morning shifting to 
                    the south around 6 mph in the afternoon. 
Mixing height.......4500 ft AGL. 
Transport winds.....South around 15 mph. 
Ventilation Index...675 good. 

$$
Forecaster...Macfarlane
Requested by...Nathan Robinson
Type of request...PRESCRIBED
.TAG 2522622.0/BOI
.DELDT 09/27/25
.FormatterVersion 2.0.0
.EMAIL nathan.robinson@usda.gov