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Record Warmth Lingers; Fire Weather Concerns; Unsettled Pacific Northwest

More record warm temperatures are forecast this week from California, Southwest, Plains then into the Mississippi Valley and Southeast. The warmth combining with dry conditions may result in elevated to locally critical fire weather conditions. Meanwhile, another Pacific system will move across the Pacific Northwest with lower elevation rain and mountain snows. For Hawaii, conditions improving. Read More >

Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

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

NA

38°F

3°C

Humidity 25%
Wind Speed NA 8 MPH
Barometer NA
Dewpoint 5°F (-15°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 23 Mar 01:10 AM MDT
Extended Forecast for

St Mary MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 28. South southwest wind 3 to 6 mph.

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 49. Light south southwest wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 23 mph.

    High: 49 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Increasing clouds, with a low around 32. South southwest wind 6 to 10 mph, with gusts as high as 23 mph.

    Low: 32 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Snow likely before 3pm, then rain and snow likely. Mostly cloudy, with a high near 46. Southwest wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 46 °F

    Slight Chance
    Snow then
    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: Rain, possibly mixed with snow, becoming all rain after 9pm. Low around 37. Southwest wind 10 to 17 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain/Snow
    then Chance
    Rain

  • Wednesday

    Wednesday: A chance of rain before 9am, then a chance of rain and snow between 9am and noon, then a chance of snow after noon. Partly sunny, with a high near 45. Breezy, with a west southwest wind 17 to 24 mph, with gusts as high as 47 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 45 °F

    Chance
    Rain/Snow
    then Chance
    Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow showers. Mostly cloudy, with a low around 23. West wind 9 to 18 mph, with gusts as high as 39 mph. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Chance Snow
    Showers

  • Thursday

    Thursday: A chance of snow showers. Partly sunny, with a high near 37. West southwest wind 8 to 14 mph, with gusts as high as 28 mph.

    High: 37 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 28. South southwest wind 3 to 6 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 49. Light south southwest wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 23 mph.
Monday Night
Increasing clouds, with a low around 32. South southwest wind 6 to 10 mph, with gusts as high as 23 mph.
Tuesday
Snow likely before 3pm, then rain and snow likely. Mostly cloudy, with a high near 46. Southwest wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tuesday Night
Rain, possibly mixed with snow, becoming all rain after 9pm. Low around 37. Southwest wind 10 to 17 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday
A chance of rain before 9am, then a chance of rain and snow between 9am and noon, then a chance of snow after noon. Partly sunny, with a high near 45. Breezy, with a west southwest wind 17 to 24 mph, with gusts as high as 47 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Wednesday Night
A 50 percent chance of snow showers. Mostly cloudy, with a low around 23. West wind 9 to 18 mph, with gusts as high as 39 mph. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow showers. Partly sunny, with a high near 37. West southwest wind 8 to 14 mph, with gusts as high as 28 mph.
Thursday Night
Mostly clear, with a low around 22.
Friday
Sunny, with a high near 46.
Friday Night
Mostly clear, with a low around 28.
Saturday
Sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
St Mary MT
 48.74°N 113.44°W (Elev. 4554 ft)
Last Update:
12:51 am MDT Mar 23, 2026
Forecast Valid:
2am MDT Mar 23, 2026-6pm MDT Mar 29, 2026
 
Forecast Discussion
 
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Additional Resources

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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