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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 2, 06:00 AM MDT until April 3, 06:00 AM MDT

Current conditions at

ST. MARY (SRYM8)

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

35°F

2°C

Humidity	99%
Wind Speed	NNE 4 MPH
Barometer	NA
Dewpoint	35°F (2°C)
Visibility	NA
Wind Chill	32°F (0°C)
Last update	02 Apr 05:11 AM MDT

More Information:

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

Extended Forecast for

7 Miles S St Mary MT

Winter Weather Advisory April 2, 06:00am until April 3, 06:00am

Click here for hazard details and duration

Winter Weather Advisory

Overnight
Low: 21 °F
Chance Snow
Thursday
High: 25 °F
Snow and
Breezy
Thursday Night
Low: 18 °F
Snow and
Areas Blowing
Snow
Friday
High: 27 °F
Mostly Sunny
and Breezy
Friday Night
Low: 21 °F
Partly Cloudy
and Windy
Saturday
High: 31 °F
Mostly Sunny
and Breezy
Saturday Night
Low: 20 °F
Partly Cloudy
and Breezy
then Partly
Cloudy
Sunday
High: 31 °F
Partly Sunny
Sunday Night
Low: 23 °F
Mostly Cloudy

Detailed Forecast

Overnight

A 50 percent chance of snow. Cloudy, with a low around 21. South wind around 14 mph. Total nighttime snow accumulation of less than one inch possible.

Thursday

Snow, mainly after 7am. High near 25. Breezy, with a south southwest wind 15 to 25 mph becoming west in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

Thursday Night

Snow, mainly before 10pm. Areas of blowing snow before midnight, then patchy blowing snow after 3am. Low around 18. Breezy, with a west wind 18 to 25 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Friday

Mostly sunny, with a high near 27. Breezy, with a west southwest wind 21 to 29 mph, with gusts as high as 38 mph.

Friday Night

Partly cloudy, with a low around 21. Windy, with a west southwest wind 30 to 32 mph, with gusts as high as 39 mph.

Saturday

Mostly sunny, with a high near 31. Breezy, with a west southwest wind 26 to 29 mph, with gusts as high as 37 mph.

Saturday Night

Partly cloudy, with a low around 20. Breezy, with a west southwest wind 20 to 25 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 32 mph.

Sunday

Partly sunny, with a high near 31. South wind 14 to 16 mph, with gusts as high as 23 mph.

Sunday Night

Mostly cloudy, with a low around 23.

Monday

Partly sunny, with a high near 38.

Monday Night

Partly cloudy, with a low around 30. Breezy.

Tuesday

A chance of snow. Mostly sunny, with a high near 36. Windy.

Tuesday Night

Snow likely. Mostly cloudy, with a low around 16. Breezy.