PNS25-72: Soliciting Comments through December 19, 2025 on the Discontinuation of the Max/Min Temperature and Precipitation Table Product (RTP) for all NWS Alaska Region, Eastern Region, and Western Region Offices.

Hazardous Weather Conditions

Winter Storm Watch in effect from December 4, 05:00 PM MST until December 6, 05:00 AM MST

Current conditions at

USCRN SITE NEAR LEWISTOWN 42WSW (JRWM8)

Lat: 46.88472°NLon: 110.28944°WElev: 5045.0ft.

30°F

-1°C

Humidity	54%
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	15°F (-9°C)
Visibility	NA
Last update	03 Dec 05:00 PM MST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

7 Miles SW Windham MT

Winter Storm Watch December 4, 05:00pm until December 6, 05:00am

Click here for hazard details and duration

Winter Storm Watch

Tonight
Low: 23 °F⇑
Patchy
Blowing Snow
Thursday
High: 37 °F
Chance Snow
and Patchy
Blowing Snow
Thursday Night
Low: 23 °F
Chance Snow
Friday
High: 35 °F
Chance Snow
Friday Night
Low: 17 °F
Snow
Saturday
High: 32 °F
Snow Likely
Saturday Night
Low: 23 °F
Chance Snow
Sunday
High: 40 °F
Partly Sunny
Sunday Night
Low: 31 °F
Breezy.
Slight Chance
Snow then
Mostly Cloudy

Detailed Forecast

Tonight

Patchy blowing snow after 11pm. Mostly cloudy, with a temperature rising to around 27 by 3am. West wind 13 to 17 mph, with gusts as high as 30 mph.

Thursday

A 40 percent chance of snow, mainly after noon. Patchy blowing snow before 11am. Partly sunny, with a high near 37. Breezy, with a west wind 17 to 23 mph, with gusts as high as 37 mph. New snow accumulation of less than a half inch possible.

Thursday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 23. West wind 15 to 20 mph, with gusts as high as 34 mph. New snow accumulation of less than one inch possible.

Friday

A 50 percent chance of snow. Mostly cloudy, with a high near 35. West wind 8 to 14 mph, with gusts as high as 22 mph. New snow accumulation of 1 to 2 inches possible.

Friday Night

Snow. Low around 17. Southwest wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Saturday

Snow likely, mainly before 11am. Mostly cloudy, with a high near 32. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Saturday Night

A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 23. West wind 10 to 16 mph, with gusts as high as 26 mph. New snow accumulation of less than a half inch possible.

Sunday

Partly sunny, with a high near 40. West southwest wind 15 to 18 mph, with gusts as high as 31 mph.

Sunday Night

A slight chance of snow before 11pm. Mostly cloudy, with a low around 31. Breezy.

Monday

Mostly sunny, with a high near 42. Breezy.

Monday Night

A slight chance of rain and snow. Mostly cloudy, with a low around 34. Breezy.

Tuesday

Rain and snow likely. Mostly cloudy, with a high near 48. Breezy.

Tuesday Night

Rain and snow likely. Mostly cloudy, with a low around 30. Breezy.