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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 April 22, 06:00 PM MDT until April 23, 06:00 PM MDT

Current conditions at

Logan Pass Visitors Center (LGPVC)

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

54°F

12°C

Humidity	23%
Wind Speed	W 3 MPH
Barometer	29.88 in (1011.85 mb)
Dewpoint	18°F (-8°C)
Visibility	NA
Last update	21 Apr 02:00 PM MDT

More Information:

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

Extended Forecast for

9 Miles SW St Mary MT

Winter Weather Advisory April 22, 06:00pm until April 23, 06:00pm

Click here for hazard details and duration

Winter Weather Advisory

Tonight
Low: 38 °F
Slight Chance
T-storms then
Partly Cloudy
Wednesday
High: 43 °F⇓
Chance
Rain/Snow
then
Rain/Snow
Wednesday Night
Low: 20 °F
Heavy Snow
and Blustery
Thursday
High: 24 °F
Snow and
Blustery
Thursday Night
Low: 15 °F
Snow Likely
Friday
High: 21 °F
Snow Likely
Friday Night
Low: 14 °F
Chance Snow
Saturday
High: 23 °F
Chance Snow
Saturday Night
Low: 14 °F
Chance Snow

Detailed Forecast

Tonight

A slight chance of showers and thunderstorms before 9pm, then a slight chance of rain between 9pm and 10pm. Mostly cloudy, with a low around 38. Southeast wind 9 to 11 mph. Chance of precipitation is 20%.

Wednesday

A chance of rain and snow before 2pm, then snow. The snow could be heavy at times. Some thunder is also possible. Temperature rising to near 43 by 10am, then falling to around 34 during the remainder of the day. South wind 9 to 14 mph becoming west 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Wednesday Night

Snow. The snow could be heavy at times. Low around 20. Blustery, with a west wind 21 to 24 mph becoming north northwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

Thursday

Snow. High near 24. Blustery, with a north wind 20 to 25 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Thursday Night

Snow likely, mainly before midnight. Mostly cloudy, with a low around 15. North wind around 20 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

Friday

Snow likely, mainly before noon. Mostly cloudy, with a high near 21. North wind around 18 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Friday Night

A 40 percent chance of snow. Mostly cloudy, with a low around 14. North wind 7 to 14 mph, with gusts as high as 20 mph. New snow accumulation of less than a half inch possible.

Saturday

A chance of snow. Partly sunny, with a high near 23. North northeast wind 6 to 9 mph.

Saturday Night

A chance of snow. Mostly cloudy, with a low around 14.

Sunday

A chance of snow. Partly sunny, with a high near 25.

Sunday Night

A slight chance of snow. Mostly cloudy, with a low around 16.

Monday

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

Monday Night

A slight chance of snow. Partly cloudy, with a low around 25.