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Snowy, Very Cold and Windy from the Northern Plains to Great Lakes; Critical Fire Weather in South Texas

Moderate to heavy lake effect snow is expected downwind of the Great Lakes, with the Chicago metro potentially receiving 6 to 12 inches of snowfall. A frigid airmass will bring very cold temperatures to the Central U.S. and Mississippi Valley today, migrating into the Eastern U.S. on Monday. Dry and windy weather will bring critical fire weather conditions to South Texas today. Read More >

Hazardous Weather Conditions

Current conditions at

ST. MARY (SRYM8)

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

NA

51°F

11°C

Humidity 17%
Wind Speed SSW 13 MPH
Barometer NA
Dewpoint 8°F (-13°C)
Visibility NA
Last update 09 Nov 12:11 PM MST
Extended Forecast for

St Mary MT

High Wind Watch November 10, 03:00am until November 10, 06:00pm
Click here for hazard details and duration
High Wind Watch

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 49. South southwest wind around 13 mph, with gusts as high as 24 mph.

    High: 49 °F

    Mostly Sunny

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a steady temperature around 44. Southwest wind 14 to 16 mph, with gusts as high as 36 mph.

    Low: 44 °F

    Decreasing
    Clouds

  • Monday

    Monday: A 20 percent chance of rain after 11am. Mostly sunny, with a high near 53. West southwest wind 15 to 20 mph, with gusts as high as 39 mph.

    High: 53 °F

    Slight Chance
    Rain

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 38. West southwest wind around 15 mph, with gusts as high as 33 mph.

    Low: 38 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 46. West southwest wind 11 to 14 mph, with gusts as high as 30 mph.

    High: 46 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34. West southwest wind 5 to 9 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 50. Southwest wind 5 to 7 mph.

    High: 50 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 39. Southwest wind around 6 mph.

    Low: 39 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 49. South southwest wind around 13 mph, with gusts as high as 24 mph.
Tonight
Cloudy, then gradually becoming partly cloudy, with a steady temperature around 44. Southwest wind 14 to 16 mph, with gusts as high as 36 mph.
Monday
A 20 percent chance of rain after 11am. Mostly sunny, with a high near 53. West southwest wind 15 to 20 mph, with gusts as high as 39 mph.
Monday Night
Mostly cloudy, with a low around 38. West southwest wind around 15 mph, with gusts as high as 33 mph.
Veterans Day
Partly sunny, with a high near 46. West southwest wind 11 to 14 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly cloudy, with a low around 34. West southwest wind 5 to 9 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 50. Southwest wind 5 to 7 mph.
Wednesday Night
Mostly cloudy, with a low around 39. Southwest wind around 6 mph.
Thursday
Partly sunny, with a high near 56.
Thursday Night
A chance of rain before 8pm, then a chance of rain and snow. Mostly cloudy, with a low around 35.
Friday
A chance of rain and snow. Partly sunny, with a high near 44.
Friday Night
A chance of snow. Mostly cloudy, with a low around 29.
Saturday
A chance of snow. Partly sunny, with a high near 40.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
St Mary MT
 48.74°N 113.44°W (Elev. 4554 ft)
Last Update:
9:24 am MST Nov 9, 2025
Forecast Valid:
1pm MST Nov 9, 2025-6pm MST Nov 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation