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

Hazardous Spring Weather Shifts to the Eastern and Northwest U.S. Wednesday

Isolated to scattered severe thunderstorms are expected Wednesday from the ArkLaTex and Lower Mississippi Valley northeastward through the Ohio Valley and Mid-Atlantic. Thunderstorms may produce heavy to excessive rain that could pose a flooding threat from east Texas into Upstate New York. A moderate atmospheric river will bring heavy snow and high winds to the Northwest U.S. Read More >

Hazardous Weather Conditions

Current conditions at

ST. MARY (SRYM8)

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

NA

25°F

-4°C

Humidity 56%
Wind Speed SW 9 MPH
Barometer NA
Dewpoint 11°F (-12°C)
Visibility NA
Wind Chill16°F (-9°C)
Last update 11 Mar 12:11 AM MDT
Extended Forecast for

7 Miles S St Mary MT

Winter Weather Advisory until March 11, 06:00pm
Winter Storm Warning March 11, 06:00pm until March 14, 06:00pm
High Wind Warning March 11, 06:00pm until March 12, 03:00pm
Click here for hazard details and duration
Winter Weather Advisory
Winter Storm Warning
High Wind Warning
  •  
    Winter Weather Advisory until March 11, 06:00pm

    NOW until 6:00pm Wed

    Winter Weather Advisory

  • Overnight

    Low: 6 °F

    Chance Snow
    and Windy

  • Wednesday

    Wednesday: Snow likely, mainly after 3pm. Mostly cloudy, with a high near 23. Wind chill values as low as -15. Windy, with a west southwest wind 29 to 38 mph, with gusts as high as 50 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    High: 23 °F

    Snow Likely
    and Windy

  • Wednesday Night

    Wednesday Night: Snow. The snow could be heavy at times. Widespread blowing snow. Low around 17. Wind chill values as low as -5. Strong and damaging winds, with a west southwest wind 37 to 47 mph increasing to 50 to 60 mph after midnight. Winds could gust as high as 80 mph. Chance of precipitation is 100%. New snow accumulation of 9 to 13 inches possible.

    Low: 17 °F

    Heavy Snow
    and Blowing
    Snow

  • Thursday

    Thursday: Snow. Widespread blowing snow. High near 23. Wind chill values as low as -10. Strong and damaging winds, with a west wind 55 to 60 mph decreasing to 49 to 54 mph in the afternoon. Winds could gust as high as 80 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 23 °F

    Snow and
    Blowing Snow

  • Thursday Night

    Thursday Night: Snow. Widespread blowing snow, mainly before 3am. Low around 13. Very windy, with a west wind 35 to 45 mph decreasing to 25 to 35 mph after midnight. Winds could gust as high as 60 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 13 °F

    Snow and
    Blowing Snow

  • Friday

    Friday: Snow. The snow could be heavy at times. High near 17. Breezy, with a west southwest wind 22 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    High: 17 °F

    Heavy Snow
    and Breezy

  • Friday Night

    Friday Night: Snow. The snow could be heavy at times. Low around 10. Breezy, with a southwest wind 17 to 25 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    Low: 10 °F

    Heavy Snow
    and Breezy

  • Saturday

    Saturday: Snow. The snow could be heavy at times. Cloudy, with a high near 13. Blustery, with a north northwest wind 17 to 23 mph, with gusts as high as 31 mph.

    High: 13 °F

    Heavy Snow
    and Blustery

Detailed Forecast

Overnight
A 50 percent chance of snow, mainly after 5am. Mostly cloudy, with a low around 6. Wind chill values as low as -15. Windy, with a west southwest wind around 30 mph, with gusts as high as 38 mph. Total nighttime snow accumulation of 1 to 2 inches possible.
Wednesday
Snow likely, mainly after 3pm. Mostly cloudy, with a high near 23. Wind chill values as low as -15. Windy, with a west southwest wind 29 to 38 mph, with gusts as high as 50 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow. The snow could be heavy at times. Widespread blowing snow. Low around 17. Wind chill values as low as -5. Strong and damaging winds, with a west southwest wind 37 to 47 mph increasing to 50 to 60 mph after midnight. Winds could gust as high as 80 mph. Chance of precipitation is 100%. New snow accumulation of 9 to 13 inches possible.
Thursday
Snow. Widespread blowing snow. High near 23. Wind chill values as low as -10. Strong and damaging winds, with a west wind 55 to 60 mph decreasing to 49 to 54 mph in the afternoon. Winds could gust as high as 80 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Thursday Night
Snow. Widespread blowing snow, mainly before 3am. Low around 13. Very windy, with a west wind 35 to 45 mph decreasing to 25 to 35 mph after midnight. Winds could gust as high as 60 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Friday
Snow. The snow could be heavy at times. High near 17. Breezy, with a west southwest wind 22 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Friday Night
Snow. The snow could be heavy at times. Low around 10. Breezy, with a southwest wind 17 to 25 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Saturday
Snow. The snow could be heavy at times. Cloudy, with a high near 13. Blustery, with a north northwest wind 17 to 23 mph, with gusts as high as 31 mph.
Saturday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 2.
Sunday
A chance of snow, mainly after noon. Mostly cloudy, with a high near 17. Breezy.
Sunday Night
Snow likely. Mostly cloudy, with a low around 14. Breezy.
Monday
A chance of snow. Cloudy, with a high near 32. Windy.
Monday Night
A chance of snow. Mostly cloudy, with a low around 31. Windy.
Tuesday
A chance of snow. Mostly cloudy, with a high near 36. Windy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles S St Mary MT
 48.64°N 113.42°W (Elev. 7927 ft)
Last Update:
12:32 am MDT Mar 11, 2026
Forecast Valid:
1am MDT Mar 11, 2026-6pm MDT Mar 17, 2026
 
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