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 Weather Advisory until December 6, 09:00 PM MST

Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

Lat: 48.74111°NLon: 113.43306°WElev: 4550.0ft.

22°F

-6°C

Humidity	89%
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	19°F (-7°C)
Visibility	NA
Last update	05 Dec 11:10 PM MST

More Information:

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

Extended Forecast for

5 Miles WSW St Mary MT

Winter Weather Advisory December 5, 11:35pm until December 6, 09:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory December 5, 11:35pm until December 6, 09:00pm
NOW until 9:00pm Sat
Winter Weather Advisory
Tonight
Low: 14 °F
Snow Likely
Saturday
High: 26 °F
Snow Likely
and Patchy
Blowing Snow
Saturday Night
Low: 22 °F
Windy. Chance
Snow then
Slight Chance
Snow
Sunday
High: 27 °F
Chance Snow
and Breezy
Sunday Night
Low: 25 °F
Chance Snow
and Windy
Monday
High: 31 °F
Chance Snow
and Windy
Monday Night
Low: 27 °F
Heavy Snow
and Windy
Tuesday
High: 30 °F
Snow and
Windy

Detailed Forecast

Tonight

Snow likely, mainly before 1am. Mostly cloudy, with a low around 14. Wind chill values as low as zero. West wind 16 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 2 to 4 inches possible.

Saturday

Snow likely, mainly after 4pm. Patchy blowing snow between noon and 1pm. Partly sunny, with a high near 26. Breezy, with a west wind 14 to 24 mph, with gusts as high as 41 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

Saturday Night

A 50 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 22. Windy, with a west southwest wind 28 to 32 mph, with gusts as high as 55 mph. New snow accumulation of 1 to 3 inches possible.

Sunday

A 40 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 27. Breezy, with a west southwest wind 25 to 28 mph, with gusts as high as 47 mph. New snow accumulation of less than one inch possible.

Sunday Night

A 50 percent chance of snow. Mostly cloudy, with a low around 25. Windy, with a west southwest wind 30 to 34 mph, with gusts as high as 65 mph. New snow accumulation of 1 to 2 inches possible.

Monday

A 50 percent chance of snow. Mostly cloudy, with a high near 31. Windy, with a west southwest wind 30 to 33 mph, with gusts as high as 60 mph. New snow accumulation of 1 to 3 inches possible.

Monday Night

Snow. The snow could be heavy at times. Low around 27. Windy, with a west southwest wind 33 to 38 mph increasing to 39 to 44 mph in the evening. Winds could gust as high as 80 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

Tuesday

Snow. Mostly cloudy, with a high near 30. Windy, with a west southwest wind 35 to 40 mph decreasing to 25 to 30 mph in the afternoon. Winds could gust as high as 75 mph.

Tuesday Night

Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 24. Breezy.

Wednesday

Snow. The snow could be heavy at times. Mostly cloudy, with a high near 30. Breezy.

Wednesday Night

Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 12. Breezy.

Thursday

Snow likely. The snow could be heavy at times. Mostly cloudy, with a high near 19.

Thursday Night

Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 11.

Friday

Snow likely. The snow could be heavy at times. Mostly cloudy, with a high near 21.