Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Current conditions at

ST. MARY (SRYM8)

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

NA

26°F

-3°C

Humidity 94%
Wind Speed ENE 3 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Last update 12 Oct 01:11 AM MDT
Extended Forecast for

St Mary MT

Winter Storm Warning October 12, 01:46am until October 12, 06:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning October 12, 01:46am until October 12, 06:00am

    NOW until 6:00am Mon

    Winter Storm Warning

  • Overnight

    Low: 25 °F

    Snow Likely

  • Columbus Day

    Columbus Day: A 20 percent chance of snow before 8am.  Cloudy through mid morning, then gradual clearing, with a high near 41. Calm wind becoming south around 5 mph in the afternoon.

    High: 41 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 24. South southwest wind 5 to 9 mph, with gusts as high as 21 mph.

    Low: 24 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 46. West southwest wind 5 to 7 mph.

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26. Southwest wind 6 to 9 mph, with gusts as high as 22 mph.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 50. West southwest wind 9 to 14 mph, with gusts as high as 29 mph.

    High: 50 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 29. West southwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 29 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 55. Calm wind becoming south around 5 mph in the afternoon.

    High: 55 °F

    Mostly Sunny

Detailed Forecast

Overnight
Snow likely, mainly before 3am. Cloudy, with a steady temperature around 25. North northeast wind around 5 mph becoming calm. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 3 inches possible.
Columbus Day
A 20 percent chance of snow before 8am. Cloudy through mid morning, then gradual clearing, with a high near 41. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 24. South southwest wind 5 to 9 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 46. West southwest wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 26. Southwest wind 6 to 9 mph, with gusts as high as 22 mph.
Wednesday
Mostly sunny, with a high near 50. West southwest wind 9 to 14 mph, with gusts as high as 29 mph.
Wednesday Night
Mostly clear, with a low around 29. West southwest wind 5 to 7 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 55. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 32.
Friday
Mostly sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 57.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
St Mary MT
 48.74°N 113.44°W (Elev. 4554 ft)
12:31 am MDT Oct 12, 2026
1am MDT Oct 12, 2026-6pm MDT Oct 18, 2026
 
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Additional Resources

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