Tracking Late Season Winter Storms; Unusual Early-Season Heat Wave in the Southwest

Heavy snow and high winds continue in the Great Lakes and Northeast. A moderate atmospheric river will continue to bring heavy precipitation to the Pacific Northwest and northern Rockies. A major winter storm will develop across the northern High Plains tonight into Saturday and rapidly strengthen as it moves into the Great Lakes on Sunday. Above-average temperatures expected in the Southwest. Read More >

Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

Lat: 46.71854°NLon: 113.29534°WElev: 3901.0ft.

unknown precip

35°F

2°C

Humidity 99%
Wind Speed WNW 5 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Wind Chill31°F (-1°C)
Last update 13 Mar 02:15 PM MDT
Extended Forecast for

5 Miles SSE Greenough MT

Winter Storm Warning March 13, 02:40pm until March 14, 12:00pm
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning March 13, 02:40pm until March 14, 12:00pm

    NOW until 12:00pm Sat

    Winter Storm Warning

  • This Afternoon

    High: 37 °F

    Heavy Snow

  • Tonight

    Tonight: Snow. The snow could be heavy at times.  Low around 30. West southwest wind 7 to 9 mph, with gusts as high as 21 mph.  Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    Low: 30 °F

    Heavy Snow

  • Saturday

    Saturday: Snow. The snow could be heavy at times.  Temperature rising to near 33 by 9am, then falling to around 25 during the remainder of the day. West wind 9 to 17 mph, with gusts as high as 37 mph.  Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 33 °F

    Heavy Snow

  • Saturday Night

    Saturday Night: Snow, mainly before midnight. The snow could be heavy at times.  Low around 12. West wind 7 to 14 mph, with gusts as high as 30 mph.  Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    Low: 12 °F

    Heavy Snow
    then Chance
    Snow

  • Sunday

    Sunday: A 20 percent chance of snow after noon.  Partly sunny, with a high near 31. West wind around 7 mph, with gusts as high as 18 mph.

    High: 31 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: A 40 percent chance of snow, mainly after midnight.  Mostly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow

  • Monday

    Monday: Snow likely before noon, then a chance of rain and snow between noon and 3pm, then a chance of rain after 3pm.  Cloudy, with a high near 41. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Snow Likely
    then Chance
    Rain/Snow

  • Monday Night

    Monday Night: A chance of rain before 3am, then a chance of rain and snow.  Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

This Afternoon
Snow. The snow could be heavy at times. High near 37. West wind around 9 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 6 to 10 inches possible.
Tonight
Snow. The snow could be heavy at times. Low around 30. West southwest wind 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Saturday
Snow. The snow could be heavy at times. Temperature rising to near 33 by 9am, then falling to around 25 during the remainder of the day. West wind 9 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Saturday Night
Snow, mainly before midnight. The snow could be heavy at times. Low around 12. West wind 7 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Sunday
A 20 percent chance of snow after noon. Partly sunny, with a high near 31. West wind around 7 mph, with gusts as high as 18 mph.
Sunday Night
A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.
Monday
Snow likely before noon, then a chance of rain and snow between noon and 3pm, then a chance of rain after 3pm. Cloudy, with a high near 41. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday Night
A chance of rain before 3am, then a chance of rain and snow. Mostly cloudy, with a low around 37.
Tuesday
A chance of rain and snow before 9am, then a chance of rain. Snow level 6700 feet rising to 7800 feet in the afternoon. Partly sunny, with a high near 49.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 38.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 53.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
A slight chance of rain and snow. Mostly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Greenough MT
 46.84°N 113.4°W (Elev. 5863 ft)
2:00 pm MDT Mar 13, 2026
2pm MDT Mar 13, 2026-6pm MDT Mar 19, 2026
 
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Additional Resources

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