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The Regional Temperatures and Precipitation Product for the State of Montana (RTPMT) will be discontinued on May 6, 2026.

Hazardous Weather Conditions

Winter Weather Advisory in effect from March 29, 08:00 PM MDT until March 30, 10:00 AM MDT

Current conditions at

Logan Pass Visitors Center (LGPVC)

Lat: 48.6949°NLon: 113.7169°WElev: 6775.0ft.

34°F

1°C

Humidity	53%
Wind Speed	NW 5 MPH
Barometer	29.91 in (1012.87 mb)
Dewpoint	19°F (-7°C)
Visibility	NA
Wind Chill	29°F (-2°C)
Last update	28 Mar 09:00 PM MDT

More Information:

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

Extended Forecast for

10 Miles SW St Mary MT

Winter Weather Advisory March 29, 08:00pm until March 30, 10:00am

Click here for hazard details and duration

Winter Weather Advisory

Today
High: 29 °F
Heavy Snow
and Breezy
Tonight
Low: 17 °F
Heavy Snow
and Blowing
Snow
Monday
High: 21 °F
Heavy Snow
and Areas
Blowing Snow
Monday Night
Low: 8 °F
Chance Snow
then Partly
Cloudy
Tuesday
High: 27 °F
Mostly Sunny
Tuesday Night
Low: 18 °F
Mostly Cloudy
Wednesday
High: 34 °F
Partly Sunny
then Slight
Chance Snow
Wednesday Night
Low: 25 °F
Snow
Thursday
High: 27 °F
Snow and
Breezy

Detailed Forecast

Today

Snow, mainly after 1pm. The snow could be heavy at times. High near 29. Breezy, with a west southwest wind around 26 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 3 to 5 inches possible.

Tonight

Snow, mainly before 5am. The snow could be heavy at times. Widespread blowing snow after 8pm. Low around 17. Breezy, with a west southwest wind 26 to 29 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

Monday

Snow likely, mainly before 4pm. The snow could be heavy at times. Areas of blowing snow before 10am. Mostly cloudy, with a high near 21. Wind chill values as low as zero. Breezy, with a west southwest wind 24 to 29 mph decreasing to 18 to 23 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 70%. New snow accumulation of 3 to 5 inches possible.

Monday Night

A 30 percent chance of snow before midnight. Partly cloudy, with a low around 8. Wind chill values as low as -5. West wind 9 to 17 mph becoming north after midnight. Winds could gust as high as 24 mph. New snow accumulation of less than a half inch possible.

Tuesday

Mostly sunny, with a high near 27. West southwest wind 8 to 13 mph, with gusts as high as 20 mph.

Tuesday Night

Mostly cloudy, with a low around 18. Southwest wind 11 to 14 mph, with gusts as high as 20 mph.

Wednesday

A 20 percent chance of snow after noon. Partly sunny, with a high near 34. Southwest wind 11 to 15 mph, with gusts as high as 23 mph.

Wednesday Night

Snow. Mostly cloudy, with a low around 25. West wind 14 to 17 mph, with gusts as high as 21 mph.

Thursday

Snow. Cloudy, with a high near 27. Breezy.

Thursday Night

Snow likely, mainly before midnight. Mostly cloudy, with a low around 17. Breezy.