Arctic Front Brings Winter Weather and Colder Temperatures to the Eastern U.S.

A series of cold fronts will bring heavy lake effect snow to the northern Great Lakes. The fronts will merge over the Ohio Valley and bring colder temperatures east of the Mississippi River later today into the end of the week. Additionally, wintry weather will develop over the Ohio Valley, Appalachians, and Northeast as rain switches over to snow tonight into Thursday morning. Read More >

Current conditions at

CW8386 Thermopolis (C8386)

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

NA

43°F

6°C

Humidity 50%
Wind Speed N 0 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 25°F (-4°C)
Visibility NA
Last update 14 Jan 05:10 PM MST
Extended Forecast for

Thermopolis WY

  • Tonight

    Tonight: Clear, with a low around 34. Calm wind.

    Low: 34 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 53. Light and variable wind becoming north 5 to 10 mph in the afternoon.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 20. Blustery, with a north northwest wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 30 mph.

    Low: 20 °F

    Decreasing
    Clouds and
    Blustery

  • Friday

    Friday: Mostly sunny, with a high near 37. Breezy, with a north wind 7 to 17 mph, with gusts as high as 26 mph.

    High: 37 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 18. West northwest wind around 7 mph.

    Low: 18 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 44. West northwest wind around 6 mph becoming light and variable  in the afternoon.

    High: 44 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 21. Southwest wind 3 to 5 mph.

    Low: 21 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 34. Calm wind.
Thursday
Sunny, with a high near 53. Light and variable wind becoming north 5 to 10 mph in the afternoon.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 20. Blustery, with a north northwest wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 30 mph.
Friday
Mostly sunny, with a high near 37. Breezy, with a north wind 7 to 17 mph, with gusts as high as 26 mph.
Friday Night
Partly cloudy, with a low around 18. West northwest wind around 7 mph.
Saturday
Sunny, with a high near 44. West northwest wind around 6 mph becoming light and variable in the afternoon.
Saturday Night
Mostly clear, with a low around 21. Southwest wind 3 to 5 mph.
Sunday
Sunny, with a high near 46.
Sunday Night
Mostly clear, with a low around 19.
M.L.King Day
Sunny, with a high near 43.
Monday Night
Mostly clear, with a low around 20.
Tuesday
Mostly sunny, with a high near 48.
Tuesday Night
Partly cloudy, with a low around 22.
Wednesday
Mostly sunny, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
Thermopolis WY
 43.64°N 108.2°W (Elev. 4400 ft)
3:47 pm MST Jan 14, 2026
5pm MST Jan 14, 2026-6pm MST Jan 21, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database