Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Current conditions at

Bearmouth I-90 MP 145.8 (MTBRM)

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

NA

25°F

-4°C

Humidity 99%
Wind Speed E 2 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Last update 01 Jan 10:16 AM MST
Extended Forecast for

5 Miles SSE Greenough MT

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 36. Calm wind.

    High: 36 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 40 percent chance of snow, mainly after 11pm.  Patchy fog before 4am, then patchy fog after 5am.  Otherwise, cloudy, with a low around 31. Calm wind becoming west southwest around 5 mph after midnight.  Little or no snow accumulation expected.

    Low: 31 °F

    Chance Snow
    and Patchy
    Fog

  • Friday

    Friday: Snow likely, mainly after 11am.  Patchy fog between 10am and 11am.  Otherwise, mostly cloudy, with a high near 37. West southwest wind around 6 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 37 °F

    Snow Likely
    and Patchy
    Fog

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 30. Southwest wind around 6 mph.

    Low: 30 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 10 percent chance of rain after 5pm.  Snow level rising to 6200 feet in the afternoon. Partly sunny, with a high near 37. South southwest wind around 5 mph becoming calm  in the morning.

    High: 37 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A slight chance of rain and snow before 8pm, then a chance of snow.  Mostly cloudy, with a low around 30. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 30 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Sunday

    Sunday: A 30 percent chance of snow, mainly after 11am.  Partly sunny, with a high near 38. Little or no snow accumulation expected.

    High: 38 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A chance of snow, mainly after 11pm.  Mostly cloudy, with a low around 30.

    Low: 30 °F

    Chance Snow

  • Monday

    Monday: A chance of snow.  Mostly cloudy, with a high near 35.

    High: 35 °F

    Chance Snow

Detailed Forecast

New Year's Day
Mostly cloudy, with a high near 36. Calm wind.
Tonight
A 40 percent chance of snow, mainly after 11pm. Patchy fog before 4am, then patchy fog after 5am. Otherwise, cloudy, with a low around 31. Calm wind becoming west southwest around 5 mph after midnight. Little or no snow accumulation expected.
Friday
Snow likely, mainly after 11am. Patchy fog between 10am and 11am. Otherwise, mostly cloudy, with a high near 37. West southwest wind around 6 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday Night
Mostly cloudy, with a low around 30. Southwest wind around 6 mph.
Saturday
A 10 percent chance of rain after 5pm. Snow level rising to 6200 feet in the afternoon. Partly sunny, with a high near 37. South southwest wind around 5 mph becoming calm in the morning.
Saturday Night
A slight chance of rain and snow before 8pm, then a chance of snow. Mostly cloudy, with a low around 30. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
A 30 percent chance of snow, mainly after 11am. Partly sunny, with a high near 38. Little or no snow accumulation expected.
Sunday Night
A chance of snow, mainly after 11pm. Mostly cloudy, with a low around 30.
Monday
A chance of snow. Mostly cloudy, with a high near 35.
Monday Night
A chance of snow. Mostly cloudy, with a low around 28.
Tuesday
A slight chance of snow. Mostly cloudy, with a high near 33.
Tuesday Night
A slight chance of snow. Mostly cloudy, with a low around 28.
Wednesday
A chance of snow. Partly sunny, with a high near 32.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Greenough MT
 46.84°N 113.4°W (Elev. 5863 ft)
4:41 am MST Jan 1, 2026
10am MST Jan 1, 2026-6pm MST Jan 7, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database