National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Another Round of Heavy Rain and Mountain Snow in California; Snow in the Great Lakes and Northeast

Another round of heavy rainfall will renew concerns for additional flash flooding and landslides in southern California around burn scars and coastal mountain ranges. A low pressure system is bringing enhanced snowfall downwind from the lower Great Lakes into the Northeast mountain ranges. Above average temperatures will challenge or break daily record high temperatures across the southern Plains. Read More >

Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

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

NA

40°F

4°C

Humidity 79%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 16 Nov 11:10 PM MST
Extended Forecast for

5 Miles WSW St Mary MT

  • Overnight

    Overnight: A 30 percent chance of rain, mainly between 1am and 4am. Mostly cloudy, with a low around 35. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 35 °F

    Chance Rain

  • Monday

    Monday: A chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 36. West southwest wind 11 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 36 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Monday Night

    Monday Night: Snow likely, possibly mixed with rain, becoming all snow after 2am. Mostly cloudy, with a low around 31. West wind 6 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Rain/Snow
    Likely

  • Tuesday

    Tuesday: A 50 percent chance of snow. Mostly cloudy, with a high near 34. West southwest wind 7 to 11 mph. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 25. West southwest wind 10 to 15 mph, with gusts as high as 26 mph. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow

  • Wednesday

    Wednesday: A 40 percent chance of snow, mainly before 11am. Partly sunny, with a high near 28. West southwest wind 9 to 15 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.

    High: 28 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 21. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 21 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 31. West southwest wind around 14 mph, with gusts as high as 22 mph.

    High: 31 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25. Breezy.

    Low: 25 °F

    Partly Cloudy
    and Breezy

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly between 1am and 4am. Mostly cloudy, with a low around 35. Southwest wind 9 to 11 mph, with gusts as high as 20 mph.
Monday
A chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 36. West southwest wind 11 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Monday Night
Snow likely, possibly mixed with rain, becoming all snow after 2am. Mostly cloudy, with a low around 31. West wind 6 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday
A 50 percent chance of snow. Mostly cloudy, with a high near 34. West southwest wind 7 to 11 mph. New snow accumulation of less than a half inch possible.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 25. West southwest wind 10 to 15 mph, with gusts as high as 26 mph. New snow accumulation of less than a half inch possible.
Wednesday
A 40 percent chance of snow, mainly before 11am. Partly sunny, with a high near 28. West southwest wind 9 to 15 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around 21. Southwest wind 8 to 10 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 31. West southwest wind around 14 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 25. Breezy.
Friday
A slight chance of snow after 11am. Partly sunny, with a high near 29. Breezy.
Friday Night
A chance of snow. Mostly cloudy, with a low around 26. Windy.
Saturday
A chance of snow. Partly sunny, with a high near 29. Breezy.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 22.
Sunday
A chance of snow. Partly sunny, with a high near 25.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW St Mary MT
 48.73°N 113.53°W (Elev. 6778 ft)
Last Update:
9:43 pm MST Nov 16, 2025
Forecast Valid:
12am MST Nov 17, 2025-6pm MST Nov 23, 2025
 
Forecast Discussion
 
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Additional Resources

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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