National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

HEBGEN LAKE (HBRM8)

Lat: 44.66597°NLon: 111.09911°WElev: 6700.0ft.

NA

-2°F

-19°C

Humidity 81%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint -6°F (-21°C)
Visibility NA
Last update 30 Dec 08:39 AM MST
Extended Forecast for

West Yellowstone MT

  • Today

    Today: Sunny, with a high near 32. Calm wind.

    High: 32 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 3. Light and variable wind.

    Low: 3 °F

    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38. Light and variable wind.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 15. Light south southeast wind.

    Low: 15 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A 40 percent chance of snow after 11am. Mostly cloudy, with a high near 34. Calm wind becoming south southwest around 6 mph in the afternoon. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 23. South southwest wind around 5 mph becoming calm in the evening. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Chance Snow

  • Friday

    Friday: A chance of snow before 11am, then a chance of rain and snow. Mostly cloudy, with a high near 37. Calm wind becoming south southwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A slight chance of rain and snow before 8pm, then a chance of rain between 8pm and 2am, then a chance of rain and snow after 2am. Mostly cloudy, with a low around 28. South southwest wind around 6 mph, with gusts as high as 20 mph.

    Low: 28 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: A chance of rain and snow before 11am, then snow likely. Mostly cloudy, with a high near 38.

    High: 38 °F

    Rain/Snow
    Likely then
    Snow Likely

Detailed Forecast

Today
Sunny, with a high near 32. Calm wind.
Tonight
Clear, with a low around 3. Light and variable wind.
Wednesday
Mostly sunny, with a high near 38. Light and variable wind.
Wednesday Night
Mostly cloudy, with a low around 15. Light south southeast wind.
New Year's Day
A 40 percent chance of snow after 11am. Mostly cloudy, with a high near 34. Calm wind becoming south southwest around 6 mph in the afternoon. New snow accumulation of less than a half inch possible.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 23. South southwest wind around 5 mph becoming calm in the evening. New snow accumulation of less than a half inch possible.
Friday
A chance of snow before 11am, then a chance of rain and snow. Mostly cloudy, with a high near 37. Calm wind becoming south southwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Friday Night
A slight chance of rain and snow before 8pm, then a chance of rain between 8pm and 2am, then a chance of rain and snow after 2am. Mostly cloudy, with a low around 28. South southwest wind around 6 mph, with gusts as high as 20 mph.
Saturday
A chance of rain and snow before 11am, then snow likely. Mostly cloudy, with a high near 38.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 21.
Sunday
A chance of snow. Mostly cloudy, with a high near 33.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 18.
Monday
A chance of snow. Mostly cloudy, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
West Yellowstone MT
 44.67°N 111.09°W (Elev. 6686 ft)
Last Update:
7:57 am MST Dec 30, 2025
Forecast Valid:
9am MST Dec 30, 2025-6pm MST Jan 5, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation