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

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

36°F

2°C

Humidity 50%
Wind Speed SW 8 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Wind Chill30°F (-1°C)
Last update 22 Mar 07:11 AM MDT
Extended Forecast for

7 Miles S St Mary MT

  • Today

    Today: Sunny, with a high near 28. Wind chill values as low as -5. Windy, with a west southwest wind 30 to 33 mph, with gusts as high as 47 mph.

    High: 28 °F

    Sunny and
    Windy

  • Tonight

    Tonight: Partly cloudy, with a low around 17. Windy, with a west southwest wind 28 to 33 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 45 mph.

    Low: 17 °F

    Partly Cloudy
    and Windy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 35. Breezy, with a west southwest wind 17 to 25 mph, with gusts as high as 34 mph.

    High: 35 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 22. Breezy, with a west southwest wind 17 to 25 mph, with gusts as high as 34 mph.

    Low: 22 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Snow, mainly after noon. High near 32. Breezy, with a southwest wind 18 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 32 °F

    Chance Snow
    then Snow and
    Breezy

  • Tuesday Night

    Tuesday Night: Snow, mainly before midnight. Low around 25. Very windy, with a southwest wind 29 to 34 mph increasing to 43 to 48 mph after midnight. Winds could gust as high as 70 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 25 °F

    Snow and
    Windy then
    Chance Snow
    and Very
    Windy

  • Wednesday

    Wednesday: A 50 percent chance of snow. Partly sunny, with a high near 28. Very windy, with a west southwest wind around 49 mph, with gusts as high as 75 mph. New snow accumulation of less than one inch possible.

    High: 28 °F

    Chance Snow
    and Very
    Windy

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 15. Windy, with a west wind 27 to 32 mph decreasing to 21 to 26 mph after midnight. Winds could gust as high as 49 mph.

    Low: 15 °F

    Snow Likely
    and Windy

  • Thursday

    Thursday: A chance of snow. Partly sunny, with a high near 23. Breezy.

    High: 23 °F

    Chance Snow
    and Breezy

Detailed Forecast

Today
Sunny, with a high near 28. Wind chill values as low as -5. Windy, with a west southwest wind 30 to 33 mph, with gusts as high as 47 mph.
Tonight
Partly cloudy, with a low around 17. Windy, with a west southwest wind 28 to 33 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 45 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 35. Breezy, with a west southwest wind 17 to 25 mph, with gusts as high as 34 mph.
Monday Night
Mostly cloudy, with a low around 22. Breezy, with a west southwest wind 17 to 25 mph, with gusts as high as 34 mph.
Tuesday
Snow, mainly after noon. High near 32. Breezy, with a southwest wind 18 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Tuesday Night
Snow, mainly before midnight. Low around 25. Very windy, with a southwest wind 29 to 34 mph increasing to 43 to 48 mph after midnight. Winds could gust as high as 70 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Wednesday
A 50 percent chance of snow. Partly sunny, with a high near 28. Very windy, with a west southwest wind around 49 mph, with gusts as high as 75 mph. New snow accumulation of less than one inch possible.
Wednesday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 15. Windy, with a west wind 27 to 32 mph decreasing to 21 to 26 mph after midnight. Winds could gust as high as 49 mph.
Thursday
A chance of snow. Partly sunny, with a high near 23. Breezy.
Thursday Night
Partly cloudy, with a low around 13. Breezy.
Friday
Sunny, with a high near 29.
Friday Night
Mostly clear, with a low around 18.
Saturday
Mostly sunny, with a high near 35.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles S St Mary MT
 48.64°N 113.42°W (Elev. 7927 ft)
Last Update:
6:51 am MDT Mar 22, 2026
Forecast Valid:
7am MDT Mar 22, 2026-6pm MDT Mar 28, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation