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 71%
Wind Speed SSW 17 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 17 Mar 06:11 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
  • Tonight

    Tonight: A slight chance of snow between 10pm and 3am, then a chance of rain and snow.  Mostly cloudy, with a low around 31. Very windy, with a west southwest wind 41 to 48 mph, with gusts as high as 60 mph.  Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 31 °F

    Chance
    Rain/Snow and
    Very Windy

  • Wednesday

    Wednesday: A 50 percent chance of snow, mainly before 3pm.  Partly sunny, with a high near 33. Very windy, with a west southwest wind 45 to 48 mph, with gusts as high as 60 mph.  New snow accumulation of around an inch possible.

    High: 33 °F

    Chance Snow
    and Very
    Windy

  • Wednesday Night

    Wednesday Night: A slight chance of snow before midnight, then a slight chance of rain and snow.  Mostly cloudy, with a low around 32. Very windy, with a west southwest wind 45 to 47 mph, with gusts as high as 60 mph.  Chance of precipitation is 20%.

    Low: 32 °F

    Very Windy.
    Slight Chance
    Snow then
    Slight Chance
    Rain/Snow

  • Thursday

    Thursday: A slight chance of snow before 3pm, then a slight chance of rain and snow.  Mostly sunny, with a high near 37. Very windy, with a west southwest wind 46 to 50 mph, with gusts as high as 70 mph.  Chance of precipitation is 20%.

    High: 37 °F

    Very Windy.
    Slight Chance
    Snow then
    Slight Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A slight chance of rain and snow.  Mostly cloudy, with a low around 35. Very windy, with a west southwest wind 49 to 55 mph, with gusts as high as 65 mph.  Chance of precipitation is 20%.

    Low: 35 °F

    Slight Chance
    Rain/Snow and
    Very Windy

  • Friday

    Friday: A chance of rain and snow.  Partly sunny, with a high near 40. Very windy, with a west southwest wind 43 to 47 mph, with gusts as high as 60 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 40 °F

    Chance
    Rain/Snow and
    Very Windy

  • Friday Night

    Friday Night: Rain and snow likely before midnight, then a chance of snow.  Mostly cloudy, with a low around 28. Windy, with a west southwest wind 39 to 44 mph decreasing to 33 to 38 mph after midnight. Winds could gust as high as 60 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Windy.
    Rain/Snow
    Likely then
    Chance Snow

  • Saturday

    Saturday: Snow likely, mainly before noon.  Mostly cloudy, with a high near 32. Windy, with a west southwest wind 29 to 33 mph, with gusts as high as 44 mph.

    High: 32 °F

    Snow Likely
    and Windy

  • Saturday Night

    Saturday Night: A chance of snow, mainly before midnight.  Partly cloudy, with a low around 19. Windy.

    Low: 19 °F

    Chance Snow
    and Windy

Detailed Forecast

Tonight
A slight chance of snow between 10pm and 3am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Very windy, with a west southwest wind 41 to 48 mph, with gusts as high as 60 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
A 50 percent chance of snow, mainly before 3pm. Partly sunny, with a high near 33. Very windy, with a west southwest wind 45 to 48 mph, with gusts as high as 60 mph. New snow accumulation of around an inch possible.
Wednesday Night
A slight chance of snow before midnight, then a slight chance of rain and snow. Mostly cloudy, with a low around 32. Very windy, with a west southwest wind 45 to 47 mph, with gusts as high as 60 mph. Chance of precipitation is 20%.
Thursday
A slight chance of snow before 3pm, then a slight chance of rain and snow. Mostly sunny, with a high near 37. Very windy, with a west southwest wind 46 to 50 mph, with gusts as high as 70 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 35. Very windy, with a west southwest wind 49 to 55 mph, with gusts as high as 65 mph. Chance of precipitation is 20%.
Friday
A chance of rain and snow. Partly sunny, with a high near 40. Very windy, with a west southwest wind 43 to 47 mph, with gusts as high as 60 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Friday Night
Rain and snow likely before midnight, then a chance of snow. Mostly cloudy, with a low around 28. Windy, with a west southwest wind 39 to 44 mph decreasing to 33 to 38 mph after midnight. Winds could gust as high as 60 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
Snow likely, mainly before noon. Mostly cloudy, with a high near 32. Windy, with a west southwest wind 29 to 33 mph, with gusts as high as 44 mph.
Saturday Night
A chance of snow, mainly before midnight. Partly cloudy, with a low around 19. Windy.
Sunday
A slight chance of snow before noon. Mostly sunny, with a high near 28. Breezy.
Sunday Night
Partly cloudy, with a low around 19. Windy.
Monday
Partly sunny, with a high near 32. Windy.
Monday Night
A slight chance of snow. Mostly cloudy, with a low around 23. 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)
5:47 pm MDT Mar 17, 2026
7pm MDT Mar 17, 2026-6pm MDT Mar 24, 2026
 
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