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

25°F

-4°C

Humidity 92%
Wind Speed SSE 0 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Last update 21 Jan 10:43 AM MST
Extended Forecast for

3 Miles ENE Big Arm MT

  • Today

    Today: Mostly cloudy, with a high near 32. Calm wind.

    High: 32 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 30. Calm wind becoming north around 5 mph in the afternoon.

    High: 30 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 14. North northeast wind around 6 mph.

    Low: 14 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 24. North northeast wind around 6 mph becoming calm  in the morning.

    High: 24 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 12.

    Low: 12 °F

    Mostly Clear

  • 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 28.

    High: 28 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 32. Calm wind.
Tonight
Mostly cloudy, with a low around 23. Calm wind.
Thursday
Partly sunny, with a high near 30. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 14. North northeast wind around 6 mph.
Friday
Sunny, with a high near 24. North northeast wind around 6 mph becoming calm in the morning.
Friday Night
Mostly clear, with a low around 12.
Saturday
Mostly sunny, with a high near 26.
Saturday Night
Partly cloudy, with a low around 15.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Partly cloudy, with a low around 19.
Monday
A slight chance of snow. Mostly cloudy, with a high near 32.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
Mostly cloudy, with a high near 37.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Big Arm MT
 47.83°N 114.23°W (Elev. 2890 ft)
2:06 am MST Jan 21, 2026
11am MST Jan 21, 2026-6pm MST Jan 27, 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