Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

ST. MARY (SRYM8)

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

NA

29°F

-2°C

Humidity 97%
Wind Speed N 5 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Wind Chill24°F (-4°C)
Last update 21 Mar 11:11 AM MDT
Extended Forecast for

7 Miles S St Mary MT

  • Today

    Today: Snow likely, mainly before 1pm.  Partly sunny, with a high near 28. Breezy, with a west wind 18 to 28 mph, with gusts as high as 37 mph.  Chance of precipitation is 60%. Total daytime snow accumulation of 2 to 4 inches possible.

    High: 28 °F

    Snow Likely
    and Breezy

  • Tonight

    Tonight: A 20 percent chance of snow before 7pm.  Mostly clear, with a low around 21. Windy, with a west southwest wind 26 to 30 mph, with gusts as high as 40 mph.

    Low: 21 °F

    Slight Chance
    Snow and
    Windy then
    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Sunny, with a high near 29. Windy, with a west southwest wind 29 to 34 mph increasing to 35 to 40 mph in the afternoon. Winds could gust as high as 65 mph.

    High: 29 °F

    Sunny and
    Windy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 21. Windy, with a west southwest wind 35 to 40 mph decreasing to 24 to 29 mph after midnight. Winds could gust as high as 60 mph.

    Low: 21 °F

    Partly Cloudy
    and Windy

  • Monday

    Monday: Mostly sunny, with a high near 32. Breezy, with a west southwest wind 21 to 29 mph, with gusts as high as 40 mph.

    High: 32 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: A 20 percent chance of snow after midnight.  Mostly cloudy, with a low around 20. Breezy, with a west southwest wind 24 to 29 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 38 mph.

    Low: 20 °F

    Mostly Cloudy
    and Breezy
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: Snow likely, mainly after noon.  Mostly cloudy, with a high near 30. Breezy, with a southwest wind 17 to 24 mph, with gusts as high as 33 mph.  Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    High: 30 °F

    Chance Snow
    then Snow
    Likely and
    Breezy

  • Tuesday Night

    Tuesday Night: Snow likely, mainly before midnight.  Mostly cloudy, with a low around 24. Windy, with a west southwest wind 24 to 32 mph, with gusts as high as 50 mph.

    Low: 24 °F

    Snow Likely
    and Windy

  • Wednesday

    Wednesday: A chance of snow.  Partly sunny, with a high near 28. Windy.

    High: 28 °F

    Chance Snow
    and Windy

Detailed Forecast

Today
Snow likely, mainly before 1pm. Partly sunny, with a high near 28. Breezy, with a west wind 18 to 28 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. Total daytime snow accumulation of 2 to 4 inches possible.
Tonight
A 20 percent chance of snow before 7pm. Mostly clear, with a low around 21. Windy, with a west southwest wind 26 to 30 mph, with gusts as high as 40 mph.
Sunday
Sunny, with a high near 29. Windy, with a west southwest wind 29 to 34 mph increasing to 35 to 40 mph in the afternoon. Winds could gust as high as 65 mph.
Sunday Night
Partly cloudy, with a low around 21. Windy, with a west southwest wind 35 to 40 mph decreasing to 24 to 29 mph after midnight. Winds could gust as high as 60 mph.
Monday
Mostly sunny, with a high near 32. Breezy, with a west southwest wind 21 to 29 mph, with gusts as high as 40 mph.
Monday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 20. Breezy, with a west southwest wind 24 to 29 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 38 mph.
Tuesday
Snow likely, mainly after noon. Mostly cloudy, with a high near 30. Breezy, with a southwest wind 17 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Tuesday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 24. Windy, with a west southwest wind 24 to 32 mph, with gusts as high as 50 mph.
Wednesday
A chance of snow. Partly sunny, with a high near 28. Windy.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 15. Windy.
Thursday
A chance of snow. Partly sunny, with a high near 24. Breezy.
Thursday Night
A slight chance of snow. Partly cloudy, with a low around 14. Breezy.
Friday
Sunny, with a high near 28.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles S St Mary MT
 48.64°N 113.42°W (Elev. 7927 ft)
8:22 am MDT Mar 21, 2026
11am MDT Mar 21, 2026-6pm MDT Mar 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

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