Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

JETTE (JETM8)

Lat: 47.76706°NLon: 114.23378°WElev: 3593.0ft.

NA

27°F

-3°C

Humidity 79%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Last update 21 Jan 03:43 PM MST
Extended Forecast for

5 Miles NE Big Arm MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 22. Light north wind increasing to 5 to 10 mph after midnight.

    Low: 22 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 31. North northeast wind 10 to 16 mph, with gusts as high as 23 mph.

    High: 31 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 15. North northeast wind 13 to 18 mph, with gusts as high as 25 mph.

    Low: 15 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 24. North wind 5 to 10 mph becoming light  in the afternoon.

    High: 24 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 13. Calm wind.

    Low: 13 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 22. Light north wind increasing to 5 to 10 mph after midnight.
Thursday
Partly sunny, with a high near 31. North northeast wind 10 to 16 mph, with gusts as high as 23 mph.
Thursday Night
Mostly cloudy, with a low around 15. North northeast wind 13 to 18 mph, with gusts as high as 25 mph.
Friday
Mostly sunny, with a high near 24. North wind 5 to 10 mph becoming light in the afternoon.
Friday Night
Partly cloudy, with a low around 13. Calm wind.
Saturday
Mostly sunny, with a high near 26.
Saturday Night
Partly cloudy, with a low around 15.
Sunday
Mostly sunny, with a high near 29.
Sunday Night
Partly cloudy, with a low around 18.
Monday
Partly sunny, with a high near 32.
Monday Night
Mostly cloudy, with a low around 22.
Tuesday
Partly sunny, with a high near 35.
Tuesday Night
Mostly cloudy, with a low around 25.
Wednesday
Mostly cloudy, with a high near 37.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NE Big Arm MT
 47.85°N 114.2°W (Elev. 2995 ft)
2:06 pm MST Jan 21, 2026
4pm MST Jan 21, 2026-6pm MST Jan 28, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database