National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

Lat: 48.74111°NLon: 113.43306°WElev: 4550.0ft.

NA

25°F

-4°C

Humidity 79%
Wind Speed NA 0 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Last update 09 Apr 08:10 AM MDT
Extended Forecast for

5 Miles WSW St Mary MT

  • Today

    Today: Mostly sunny, with a high near 36. North northeast wind 5 to 9 mph becoming south in the afternoon. Winds could gust as high as 18 mph.

    High: 36 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 24. Southwest wind 7 to 9 mph becoming south southeast in the evening.

    Low: 24 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 47. Southwest wind 8 to 10 mph.

    High: 47 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 33. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 50 percent chance of showers, mainly after noon. Partly sunny, with a high near 47. West wind 7 to 15 mph, with gusts as high as 26 mph.

    High: 47 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of rain showers before midnight, then a chance of rain and snow showers. Mostly cloudy, with a low around 30. West wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Sunday

    Sunday: Snow showers likely, mainly after noon. Mostly cloudy, with a high near 33. West northwest wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 33 °F

    Snow Showers
    Likely

  • Sunday Night

    Sunday Night: Rain and snow likely, becoming all snow after 9pm. Mostly cloudy, with a low around 26. North northeast wind 14 to 18 mph becoming west northwest after midnight. Winds could gust as high as 25 mph.

    Low: 26 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Monday

    Monday: Snow likely. Mostly cloudy, with a high near 34.

    High: 34 °F

    Snow Likely

Detailed Forecast

Today
Mostly sunny, with a high near 36. North northeast wind 5 to 9 mph becoming south in the afternoon. Winds could gust as high as 18 mph.
Tonight
Mostly clear, with a low around 24. Southwest wind 7 to 9 mph becoming south southeast in the evening.
Friday
Sunny, with a high near 47. Southwest wind 8 to 10 mph.
Friday Night
Mostly cloudy, with a low around 33. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Saturday
A 50 percent chance of showers, mainly after noon. Partly sunny, with a high near 47. West wind 7 to 15 mph, with gusts as high as 26 mph.
Saturday Night
A chance of rain showers before midnight, then a chance of rain and snow showers. Mostly cloudy, with a low around 30. West wind 14 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Sunday
Snow showers likely, mainly after noon. Mostly cloudy, with a high near 33. West northwest wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Sunday Night
Rain and snow likely, becoming all snow after 9pm. Mostly cloudy, with a low around 26. North northeast wind 14 to 18 mph becoming west northwest after midnight. Winds could gust as high as 25 mph.
Monday
Snow likely. Mostly cloudy, with a high near 34.
Monday Night
A chance of snow before midnight. Mostly cloudy, with a low around 28. Breezy.
Tuesday
Partly sunny, with a high near 35. Windy.
Tuesday Night
A slight chance of snow. Mostly cloudy, with a low around 28. Windy.
Wednesday
A chance of snow. Partly sunny, with a high near 32. Windy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW St Mary MT
 48.73°N 113.53°W (Elev. 6778 ft)
Last Update:
4:36 am MDT Apr 9, 2026
Forecast Valid:
8am MDT Apr 9, 2026-6pm MDT Apr 15, 2026
 
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