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

ST. MARY (SRYM8)

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

NA

49°F

9°C

Humidity 90%
Wind Speed SSW 3 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 05 Jul 06:11 AM MDT
Extended Forecast for

St Mary MT

  • Today

    Today: Increasing clouds, with a high near 76. Light south southwest wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 22 mph.

    High: 76 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 48. West wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 21 mph.

    Low: 48 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 74. Calm wind becoming east southeast 5 to 8 mph in the morning.

    High: 74 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after midnight. Cloudy, then gradually becoming partly cloudy, with a low around 52. Southeast wind 5 to 7 mph becoming calm after midnight.

    Low: 52 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 81. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 20%.

    High: 81 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56. Southwest wind around 5 mph.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82. Southwest wind 6 to 14 mph, with gusts as high as 29 mph.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54. West southwest wind 6 to 13 mph, with gusts as high as 28 mph.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 76. Light south southwest wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 22 mph.
Tonight
Partly cloudy, with a low around 48. West wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 21 mph.
Monday
Mostly sunny, with a high near 74. Calm wind becoming east southeast 5 to 8 mph in the morning.
Monday Night
A 20 percent chance of showers after midnight. Cloudy, then gradually becoming partly cloudy, with a low around 52. Southeast wind 5 to 7 mph becoming calm after midnight.
Tuesday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 81. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 56. Southwest wind around 5 mph.
Wednesday
Sunny, with a high near 82. Southwest wind 6 to 14 mph, with gusts as high as 29 mph.
Wednesday Night
Mostly clear, with a low around 54. West southwest wind 6 to 13 mph, with gusts as high as 28 mph.
Thursday
Sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
St Mary MT
 48.74°N 113.44°W (Elev. 4554 ft)
Last Update:
5:12 am MDT Jul 5, 2026
Forecast Valid:
6am MDT Jul 5, 2026-6pm MDT Jul 11, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation