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 12, 12:00 AM MST until December 13, 05:00 AM MST
Winter Weather Advisory in effect from December 11, 12:00 AM MST until December 11, 03:00 PM MST

Current conditions at

ST. MARY (SRYM8)

Lat: 48.74108°NLon: 113.43289°WElev: 4557.0ft.

45°F

7°C

Humidity	79%
Wind Speed	SW 16 MPH
Barometer	NA
Dewpoint	39°F (4°C)
Visibility	NA
Wind Chill	38°F (3°C)
Last update	10 Dec 04:11 PM MST

More Information:

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

Extended Forecast for

7 Miles S St Mary MT

Winter Storm Watch December 12, 12:00am until December 13, 05:00am

Winter Weather Advisory December 11, 12:00am until December 11, 03:00pm

Click here for hazard details and duration

Winter Storm Watch

Winter Weather Advisory

This Afternoon
High: 38 °F
Snow and
Windy
Tonight
Low: 36 °F
Snow and
Windy
Thursday
High: 32 °F⇓
Snow and
Windy then
Chance Snow
and Breezy
Thursday Night
Low: 10 °F
Chance Snow
then Snow
Friday
High: 23 °F
Snow
Friday Night
Low: 15 °F
Snow Likely
and Breezy
Saturday
High: 29 °F
Chance Snow
then Partly
Sunny and
Breezy
Saturday Night
Low: 27 °F
Partly Cloudy
and Windy
Sunday
High: 31 °F
Chance Snow
and Windy

Detailed Forecast

This Afternoon

Snow. High near 38. Windy, with a west southwest wind around 40 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 1 to 3 inches possible.

Tonight

Snow. Steady temperature around 36. Windy, with a west southwest wind 32 to 41 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Thursday

Snow, mainly before noon. Temperature falling to around 18 by 5pm. Wind chill values as low as zero. Windy, with a west wind 36 to 41 mph decreasing to 24 to 29 mph in the afternoon. Winds could gust as high as 60 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

Thursday Night

Snow, mainly after 3am. Low around 10. Wind chill values as low as zero. Northwest wind 10 to 13 mph becoming north northeast in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

Friday

Snow. High near 23. Northwest wind 13 to 16 mph becoming east in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

Friday Night

Snow likely. Cloudy, with a low around 15. Breezy, with a west wind 18 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

Saturday

A 30 percent chance of snow before 11am. Mostly cloudy, with a high near 29. Breezy, with a southwest wind 18 to 23 mph, with gusts as high as 33 mph. New snow accumulation of less than a half inch possible.

Saturday Night

Partly cloudy, with a low around 27. Windy, with a west southwest wind 26 to 34 mph, with gusts as high as 44 mph.

Sunday

A chance of snow, mainly after 11am. Mostly sunny, with a high near 31. Windy.

Sunday Night

A slight chance of snow. Mostly cloudy, with a low around 28. Windy.

Monday

A chance of snow. Partly sunny, with a high near 32. Windy.

Monday Night

Snow likely. Mostly cloudy, with a low around 25. Very windy.

Tuesday

Snow likely. Mostly cloudy, with a high near 31. Windy.