Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

JETTE (JETM8)

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

NA

23°F

-5°C

Humidity 95%
Wind Speed SSE 0 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 19 Jan 10:43 PM MST
Extended Forecast for

6 Miles NNE Big Arm MT

  • Tonight

    Tonight: Cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Cloudy

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 36. Calm wind.

    High: 36 °F

    Gradual
    Clearing

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Partly 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 33.

    High: 33 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 29. Calm wind.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 36. Calm wind.
Tuesday Night
Partly cloudy, with a low around 26. 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 33.
Thursday Night
Mostly cloudy, with a low around 20.
Friday
Mostly sunny, with a high near 31.
Friday Night
Partly cloudy, with a low around 20.
Saturday
Mostly sunny, with a high near 33.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around 23.
Sunday
A chance of snow. Mostly cloudy, with a high near 35.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 29.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNE Big Arm MT
 47.87°N 114.23°W (Elev. 2890 ft)
2:06 pm MST Jan 19, 2026
11pm MST Jan 19, 2026-6pm MST Jan 26, 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