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

CW8386 Thermopolis (C8386)

Lat: 43.642°NLon: 108.22633°WElev: 4426.0ft.

NA

20°F

-7°C

Humidity 77%
Wind Speed N 0 MPH
Barometer 30.4 in (1029.46 mb)
Dewpoint 14°F (-10°C)
Visibility NA
Last update 30 Dec 08:55 AM MST
Extended Forecast for

Thermopolis WY

  • Today

    Today: Mostly sunny, with a high near 42. Light north northeast wind.

    High: 42 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 20. South wind 3 to 6 mph.

    Low: 20 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. South wind around 6 mph.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24. South wind around 6 mph.

    Low: 24 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 49. South wind 3 to 5 mph.

    High: 49 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 28. Light south southwest wind.

    Low: 28 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 52. South southwest wind 3 to 6 mph.

    High: 52 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 42. Light north northeast wind.
Tonight
Mostly clear, with a low around 20. South wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 47. South wind around 6 mph.
Wednesday Night
Mostly cloudy, with a low around 24. South wind around 6 mph.
New Year's Day
Mostly cloudy, with a high near 49. South wind 3 to 5 mph.
Thursday Night
Mostly cloudy, with a low around 28. Light south southwest wind.
Friday
Mostly sunny, with a high near 52. South southwest wind 3 to 6 mph.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 54.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Mostly clear, with a low around 22.
Monday
Sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thermopolis WY
 43.64°N 108.2°W (Elev. 4400 ft)
Last Update:
8:33 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

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