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

Record Breaking Temperatures and Critical Fire Weather

More than 200 record or near record maximum temperatures are forecast across the southern half of the U.S. through the end of this week before additional record temperatures center back over the Southwest U.S. into the Rockies this weekend. Widespread record breaking warmth, low humidity, and gusty winds will produce critical fire weather today in the central Rockies to Plains. Read More >

Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

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

NA

41°F

5°C

Humidity 45%
Wind Speed NA 11 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Wind Chill34°F (1°C)
Last update 25 Mar 07:10 AM MDT
Extended Forecast for

5 Miles WSW St Mary MT

  • Today

    Today: A 20 percent chance of snow between noon and 1pm. Areas of blowing dust. Partly sunny, with a high near 31. Windy, with a west southwest wind 33 to 38 mph, with gusts as high as 55 mph.

    High: 31 °F

    Slight Chance
    Snow and
    Windy

  • Tonight

    Tonight: Snow, mainly after midnight. Low around 15. Wind chill values as low as zero. Windy, with a west wind 27 to 32 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 46 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 15 °F

    Chance Snow
    and Windy
    then Snow

  • Thursday

    Thursday: A 50 percent chance of snow. Partly sunny, with a high near 22. Wind chill values as low as zero. Breezy, with a west southwest wind 21 to 25 mph, with gusts as high as 41 mph. New snow accumulation of around an inch possible.

    High: 22 °F

    Chance Snow
    and Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming clear, with a low around 14. Wind chill values as low as -5. Breezy, with a west southwest wind 15 to 24 mph, with gusts as high as 40 mph.

    Low: 14 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Friday

    Friday: Mostly sunny, with a high near 32. West southwest wind around 16 mph, with gusts as high as 28 mph.

    High: 32 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 21. Southwest wind 11 to 15 mph, with gusts as high as 28 mph.

    Low: 21 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 38. West southwest wind 11 to 17 mph, with gusts as high as 32 mph.

    High: 38 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26. Breezy, with a west southwest wind 20 to 22 mph, with gusts as high as 34 mph.

    Low: 26 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 37. Breezy.

    High: 37 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

Detailed Forecast

Today
A 20 percent chance of snow between noon and 1pm. Areas of blowing dust. Partly sunny, with a high near 31. Windy, with a west southwest wind 33 to 38 mph, with gusts as high as 55 mph.
Tonight
Snow, mainly after midnight. Low around 15. Wind chill values as low as zero. Windy, with a west wind 27 to 32 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 46 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Thursday
A 50 percent chance of snow. Partly sunny, with a high near 22. Wind chill values as low as zero. Breezy, with a west southwest wind 21 to 25 mph, with gusts as high as 41 mph. New snow accumulation of around an inch possible.
Thursday Night
Mostly cloudy, then gradually becoming clear, with a low around 14. Wind chill values as low as -5. Breezy, with a west southwest wind 15 to 24 mph, with gusts as high as 40 mph.
Friday
Mostly sunny, with a high near 32. West southwest wind around 16 mph, with gusts as high as 28 mph.
Friday Night
Partly cloudy, with a low around 21. Southwest wind 11 to 15 mph, with gusts as high as 28 mph.
Saturday
Mostly sunny, with a high near 38. West southwest wind 11 to 17 mph, with gusts as high as 32 mph.
Saturday Night
Partly cloudy, with a low around 26. Breezy, with a west southwest wind 20 to 22 mph, with gusts as high as 34 mph.
Sunday
Mostly sunny, with a high near 37. Breezy.
Sunday Night
A chance of snow, mainly after midnight. Mostly cloudy, with a low around 27. Breezy.
Monday
A chance of snow. Partly sunny, with a high near 34. Breezy.
Monday Night
A chance of snow. Mostly cloudy, with a low around 21. Breezy.
Tuesday
A chance of snow. Mostly cloudy, with a high near 30. Breezy.
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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:
7:11 am MDT Mar 25, 2026
Forecast Valid:
8am MDT Mar 25, 2026-6pm MDT Mar 31, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation