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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

39°F

4°C

Humidity 22%
Wind Speed NA 11 MPH
Barometer NA
Dewpoint 3°F (-16°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 23 Mar 12:10 AM MDT
Extended Forecast for

5 Miles WSW St Mary MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 20. West wind 10 to 15 mph, with gusts as high as 26 mph.

    Low: 20 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 35. West southwest wind 9 to 18 mph, with gusts as high as 36 mph.

    High: 35 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 26. West wind 14 to 20 mph, with gusts as high as 36 mph.

    Low: 26 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Snow likely, mainly after noon. Mostly cloudy, with a high near 33. Southwest wind 13 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 33 °F

    Chance Snow
    then Snow
    Likely

  • Tuesday Night

    Tuesday Night: Snow before midnight, then rain and snow likely between midnight and 3am, then snow likely after 3am. Low around 28. Windy, with a southwest wind 20 to 25 mph increasing to 28 to 33 mph after midnight. Winds could gust as high as 60 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 28 °F

    Snow and
    Breezy then
    Rain/Snow
    Likely and
    Windy

  • Wednesday

    Wednesday: A 40 percent chance of snow. Partly sunny, with a high near 32. Windy, with a west southwest wind 34 to 41 mph, with gusts as high as 70 mph. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Chance Snow
    and Windy

  • Wednesday Night

    Wednesday Night: Snow showers likely, mainly after midnight. Mostly cloudy, with a low around 16. Windy, with a west southwest wind 32 to 37 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 60 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    Low: 16 °F

    Snow Showers
    Likely and
    Windy

  • Thursday

    Thursday: A chance of snow showers. Partly sunny, with a high near 25. Breezy, with a west southwest wind 18 to 25 mph, with gusts as high as 43 mph.

    High: 25 °F

    Chance Snow
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A slight chance of snow before midnight. Partly cloudy, with a low around 14. Breezy.

    Low: 14 °F

    Slight Chance
    Snow and
    Breezy then
    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 20. West wind 10 to 15 mph, with gusts as high as 26 mph.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 35. West southwest wind 9 to 18 mph, with gusts as high as 36 mph.
Monday Night
Increasing clouds, with a low around 26. West wind 14 to 20 mph, with gusts as high as 36 mph.
Tuesday
Snow likely, mainly after noon. Mostly cloudy, with a high near 33. Southwest wind 13 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Tuesday Night
Snow before midnight, then rain and snow likely between midnight and 3am, then snow likely after 3am. Low around 28. Windy, with a southwest wind 20 to 25 mph increasing to 28 to 33 mph after midnight. Winds could gust as high as 60 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday
A 40 percent chance of snow. Partly sunny, with a high near 32. Windy, with a west southwest wind 34 to 41 mph, with gusts as high as 70 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow showers likely, mainly after midnight. Mostly cloudy, with a low around 16. Windy, with a west southwest wind 32 to 37 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 60 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Thursday
A chance of snow showers. Partly sunny, with a high near 25. Breezy, with a west southwest wind 18 to 25 mph, with gusts as high as 43 mph.
Thursday Night
A slight chance of snow before midnight. Partly cloudy, with a low around 14. Breezy.
Friday
Sunny, with a high near 33.
Friday Night
Mostly clear, with a low around 19.
Saturday
Sunny, with a high near 40.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
Mostly sunny, with a high near 43. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW St Mary MT
 48.73°N 113.53°W (Elev. 6778 ft)
Last Update:
12:51 am MDT Mar 23, 2026
Forecast Valid:
1am MDT Mar 23, 2026-6pm MDT Mar 29, 2026
 
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