Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Current conditions at

ST. MARY (SRYM8)

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

NA

43°F

6°C

Humidity 76%
Wind Speed SSW 18 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 17 Mar 11:11 PM MDT
Extended Forecast for

7 Miles S St Mary MT

High Wind Warning March 18, 06:00am until March 18, 09:00pm
Click here for hazard details and duration
High Wind Warning
  • Overnight

    Overnight: A chance of snow after 2am, mixing with rain after 4am.  Mostly cloudy, with a low around 30. Very windy, with a west southwest wind 44 to 49 mph, with gusts as high as 60 mph.  Chance of precipitation is 50%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 30 °F

    Chance
    Rain/Snow and
    Very Windy

  • Wednesday

    Wednesday: Rain and snow likely before 10am, then a chance of snow between 10am and 4pm.  Partly sunny, with a high near 33. Very windy, with a west southwest wind 43 to 50 mph, with gusts as high as 65 mph.  Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    High: 33 °F

    Very Windy.
    Rain/Snow
    Likely then
    Chance Snow

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow between 1am and 2am.  Partly cloudy, with a low around 32. Very windy, with a west southwest wind 45 to 48 mph, with gusts as high as 60 mph.

    Low: 32 °F

    Slight Chance
    Snow and Very
    Windy

  • Thursday

    Thursday: A 20 percent chance of snow.  Mostly sunny, with a high near 36. Very windy, with a west southwest wind 48 to 50 mph, with gusts as high as 65 mph.

    High: 36 °F

    Slight Chance
    Snow and Very
    Windy

  • Thursday Night

    Thursday Night: A chance of rain and snow.  Mostly cloudy, with a low around 34. Very windy, with a west southwest wind 46 to 50 mph, with gusts as high as 65 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 34 °F

    Chance
    Rain/Snow and
    Very Windy

  • Friday

    Friday: Rain and snow likely, mainly after noon.  Mostly cloudy, with a high near 37. Very windy, with a west southwest wind 38 to 45 mph, with gusts as high as 65 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Rain/Snow
    Likely and
    Very Windy

  • Friday Night

    Friday Night: Rain and snow likely, becoming all snow after midnight.  Mostly cloudy, with a low around 26. Windy, with a southwest wind 37 to 41 mph, with gusts as high as 55 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Windy.
    Rain/Snow
    Likely then
    Snow Likely

  • Saturday

    Saturday: A chance of snow.  Partly sunny, with a high near 31. Windy, with a west wind 28 to 33 mph, with gusts as high as 44 mph.

    High: 31 °F

    Chance Snow
    and Windy

  • Saturday Night

    Saturday Night: A slight chance of snow before midnight.  Partly cloudy, with a low around 16. Breezy.

    Low: 16 °F

    Slight Chance
    Snow and
    Breezy then
    Mostly Clear

Detailed Forecast

Overnight
A chance of snow after 2am, mixing with rain after 4am. Mostly cloudy, with a low around 30. Very windy, with a west southwest wind 44 to 49 mph, with gusts as high as 60 mph. Chance of precipitation is 50%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Rain and snow likely before 10am, then a chance of snow between 10am and 4pm. Partly sunny, with a high near 33. Very windy, with a west southwest wind 43 to 50 mph, with gusts as high as 65 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
A 20 percent chance of snow between 1am and 2am. Partly cloudy, with a low around 32. Very windy, with a west southwest wind 45 to 48 mph, with gusts as high as 60 mph.
Thursday
A 20 percent chance of snow. Mostly sunny, with a high near 36. Very windy, with a west southwest wind 48 to 50 mph, with gusts as high as 65 mph.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 34. Very windy, with a west southwest wind 46 to 50 mph, with gusts as high as 65 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday
Rain and snow likely, mainly after noon. Mostly cloudy, with a high near 37. Very windy, with a west southwest wind 38 to 45 mph, with gusts as high as 65 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
Rain and snow likely, becoming all snow after midnight. Mostly cloudy, with a low around 26. Windy, with a southwest wind 37 to 41 mph, with gusts as high as 55 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday
A chance of snow. Partly sunny, with a high near 31. Windy, with a west wind 28 to 33 mph, with gusts as high as 44 mph.
Saturday Night
A slight chance of snow before midnight. Partly cloudy, with a low around 16. Breezy.
Sunday
Sunny, with a high near 28. Breezy.
Sunday Night
Mostly clear, with a low around 19. Breezy.
Monday
Partly sunny, with a high near 28. Breezy.
Monday Night
A slight chance of snow. Mostly cloudy, with a low around 21. Windy.
Tuesday
A chance of snow. Mostly cloudy, with a high near 32. Windy.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles S St Mary MT
 48.64°N 113.42°W (Elev. 7927 ft)
10:42 pm MDT Mar 17, 2026
12am MDT Mar 18, 2026-6pm MDT Mar 24, 2026
 
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