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 in effect from December 5, 05:00 PM MST until December 6, 09:00 PM MST

Current conditions at

FLATTOP MTN. (FTMM8)

Lat: 48.80225°NLon: 113.85713°WElev: 6300.0ft.

N/A

Humidity	92%
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	25 Nov 05:00 AM MST

More Information:

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

Extended Forecast for

16 Miles W St Mary MT

Winter Weather Advisory December 5, 05:00pm until December 6, 09:00pm

Click here for hazard details and duration

Winter Weather Advisory

This Afternoon
High: 22 °F
Heavy Snow
and Patchy
Blowing Snow
Tonight
Low: 14 °F
Heavy Snow
Saturday
High: 22 °F
Chance Snow
then Heavy
Snow
Saturday Night
Low: 18 °F
Breezy. Snow
Likely then
Chance Snow
Sunday
High: 24 °F
Snow Likely
and Breezy
Sunday Night
Low: 21 °F
Snow Likely
and Breezy
Monday
High: 27 °F
Snow Likely
and Breezy
Monday Night
Low: 21 °F
Heavy Snow
and Windy
Tuesday
High: 25 °F
Snow and
Windy

Detailed Forecast

This Afternoon

Snow, mainly after 4pm. The snow could be heavy at times. Patchy blowing snow after 4pm. High near 22. Southwest wind around 16 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 1 to 3 inches possible.

Tonight

Snow, mainly before 3am. The snow could be heavy at times. Low around 14. West southwest wind 13 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

Saturday

Snow likely, mainly after 3pm. The snow could be heavy at times. Mostly cloudy, with a high near 22. Southwest wind 13 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Saturday Night

Snow likely, mainly before 11pm. Mostly cloudy, with a low around 18. Breezy, with a west southwest wind 21 to 25 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

Sunday

Snow likely, mainly after 11am. Cloudy, with a high near 24. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Sunday Night

Snow likely, mainly before 11pm. Mostly cloudy, with a low around 21. Breezy, with a west southwest wind 23 to 25 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Monday

Snow likely, mainly after 11am. Cloudy, with a high near 27. Breezy, with a west southwest wind 22 to 25 mph, with gusts as high as 38 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

Monday Night

Snow. The snow could be heavy at times. Cloudy, with a low around 21. Windy, with a southwest wind 26 to 33 mph, with gusts as high as 47 mph.

Tuesday

Snow. Mostly cloudy, with a high near 25. Windy.

Tuesday Night

Snow likely. The snow could be heavy at times. Mostly cloudy, with a low around 20.

Wednesday

Snow. The snow could be heavy at times. Mostly cloudy, with a high near 23.

Wednesday Night

Snow. The snow could be heavy at times. Mostly cloudy, with a low around 10.

Thursday

Snow. The snow could be heavy at times. Mostly cloudy, with a high near 15.