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 11, 02:00 PM MST until December 13, 05:00 AM MST

Current conditions at

USCRN SITE NEAR LEWISTOWN 42WSW (JRWM8)

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

35°F

2°C

Humidity	38%
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	11°F (-12°C)
Visibility	NA
Last update	09 Dec 07:00 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 11, 02:00pm until December 13, 05:00am

Click here for hazard details and duration

Winter Storm Watch

Tonight
Low: 31 °F
Mostly Cloudy
then Snow
Likely
Wednesday
High: 51 °F
Rain/Snow and
Breezy then
Slight Chance
Rain and
Windy
Wednesday Night
Low: 48 °F
Windy. Chance
Rain then
Chance
Rain/Snow
Thursday
High: 49 °F
Rain/Snow and
Windy
Thursday Night
Low: 11 °F
Snow
Friday
High: 29 °F
Snow
Friday Night
Low: 6 °F
Snow Likely
Saturday
High: 31 °F
Chance Snow
Saturday Night
Low: 21 °F
Mostly Cloudy

Detailed Forecast

Tonight

Snow likely, mainly after 5am. Increasing clouds, with a steady temperature around 31. West northwest wind 16 to 21 mph becoming west 9 to 14 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

Wednesday

Rain and snow before noon, then a slight chance of rain after 3pm. High near 51. Windy, with a west wind 20 to 25 mph increasing to 28 to 33 mph in the afternoon. Winds could gust as high as 49 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Wednesday Night

A chance of rain before 2am, then a chance of rain and snow. Mostly cloudy, with a steady temperature around 48. Windy, with a west wind 31 to 33 mph, with gusts as high as 50 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Thursday

Rain, possibly mixed with snow, becoming all snow after 2pm. High near 49. Windy, with a west northwest wind 28 to 33 mph decreasing to 21 to 26 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Thursday Night

Snow. Low around 11. North wind 5 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Friday

Snow. High near 29. Light and variable wind becoming west northwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Friday Night

Snow likely. Cloudy, with a low around 6. West northwest wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Saturday

A chance of snow, mainly before 11am. Mostly cloudy, with a high near 31. West wind 7 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 18 mph.

Saturday Night

Mostly cloudy, with a low around 21.

Sunday

Partly sunny, with a high near 46.

Sunday Night

Mostly cloudy, with a low around 30.

Monday

Partly sunny, with a high near 46.

Monday Night

Mostly cloudy, with a low around 32.

Tuesday

A chance of rain and snow. Mostly sunny, with a high near 46. Breezy.