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Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

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

NA

26°F

-3°C

Humidity 51%
Wind Speed NA 2 MPH
Barometer NA
Dewpoint 10°F (-12°C)
Visibility NA
Last update 21 Jan 01:10 PM MST
Extended Forecast for

St Mary MT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 25. South southwest wind 3 to 5 mph.

    High: 25 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 5. Light north northeast wind.

    Low: 5 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 4pm. Mostly cloudy, with a high near 13. Wind chill values as low as -5. Calm wind becoming northeast 5 to 7 mph in the morning.

    High: 13 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow. Mostly cloudy, with a low around -4. Wind chill values as low as -15. East wind 5 to 7 mph.

    Low: -4 °F

    Slight Chance
    Snow

  • Friday

    Friday: Mostly sunny, with a high near 11. Light and variable wind becoming north northwest around 5 mph in the afternoon.

    High: 11 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 3. West southwest wind 3 to 6 mph.

    Low: 3 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow before 11am. Partly sunny, with a high near 20. West wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 20 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 10. West southwest wind around 9 mph, with gusts as high as 20 mph.

    Low: 10 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 25. South southwest wind 3 to 5 mph.
Tonight
Mostly cloudy, with a low around 5. Light north northeast wind.
Thursday
A 20 percent chance of snow after 4pm. Mostly cloudy, with a high near 13. Wind chill values as low as -5. Calm wind becoming northeast 5 to 7 mph in the morning.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around -4. Wind chill values as low as -15. East wind 5 to 7 mph.
Friday
Mostly sunny, with a high near 11. Light and variable wind becoming north northwest around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 3. West southwest wind 3 to 6 mph.
Saturday
A 20 percent chance of snow before 11am. Partly sunny, with a high near 20. West wind 6 to 9 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 10. West southwest wind around 9 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 27.
Sunday Night
Mostly clear, with a low around 16.
Monday
Mostly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Mostly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
St Mary MT
 48.74°N 113.44°W (Elev. 4554 ft)
Last Update:
1:32 pm MST Jan 21, 2026
Forecast Valid:
1pm MST Jan 21, 2026-6pm MST Jan 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation