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

21°F

-6°C

Humidity 94%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Last update 21 Jan 02:43 AM MST
Extended Forecast for

5 Miles NE Big Arm MT

  • Overnight

    Overnight: Mostly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 33. Calm wind.

    High: 33 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: 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 7 mph.

    Low: 14 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 24.

    High: 24 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 13.

    Low: 13 °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

Detailed Forecast

Overnight
Mostly cloudy, with a low around 24. Calm wind.
Wednesday
Mostly cloudy, with a high near 33. Calm wind.
Wednesday Night
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 7 mph.
Friday
Sunny, with a high near 24.
Friday Night
Mostly clear, with a low around 13.
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
Mostly cloudy, with a low around 19.
Monday
A slight chance of snow. Mostly cloudy, with a high near 33.
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:
5 Miles NE Big Arm MT
 47.85°N 114.2°W (Elev. 2995 ft)
2:06 am MST Jan 21, 2026
3am 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