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

Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Current conditions at

CW8386 Thermopolis (C8386)

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

NA

34°F

1°C

Humidity 41%
Wind Speed N 0 MPH
Barometer 30.39 in (1029.12 mb)
Dewpoint 13°F (-11°C)
Visibility NA
Last update 29 Dec 12:40 PM MST
Extended Forecast for

Thermopolis WY

  • This Afternoon

    This Afternoon: Sunny, with a high near 33. Light north northeast wind.

    High: 33 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 15. Light south wind.

    Low: 15 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 40. Light and variable wind.

    High: 40 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 20. Calm wind becoming south around 5 mph in the evening.

    Low: 20 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46. South wind around 6 mph.

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23. South wind 3 to 5 mph.

    Low: 23 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 48. South wind around 5 mph becoming calm in the afternoon.

    High: 48 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 33. Light north northeast wind.
Tonight
Mostly clear, with a low around 15. Light south wind.
Tuesday
Mostly sunny, with a high near 40. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 20. Calm wind becoming south around 5 mph in the evening.
Wednesday
Mostly sunny, with a high near 46. South wind around 6 mph.
Wednesday Night
Mostly cloudy, with a low around 23. South wind 3 to 5 mph.
New Year's Day
Mostly cloudy, with a high near 48. South wind around 5 mph becoming calm in the afternoon.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
Mostly sunny, with a high near 51.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Mostly sunny, with a high near 52.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 50.
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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:
12:17 pm MST Dec 29, 2025
Forecast Valid:
12pm MST Dec 29, 2025-6pm MST Jan 4, 2026
 
Forecast Discussion
 
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Additional Resources

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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