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

Storm Impacting the Southwest U.S.; Above Normal Temperatures Further East

A storm system will shift across the southwest U.S. through Thursday with widespread showers and isolated thunderstorms. Isolated flooding is possible. High-elevation snow is also expected in parts of Nevada and the southern Sierra Nevada range. East of this storm, above average temperatures will challenge or break daily record high temperatures this week in the southern Plains and southeast U.S. Read More >

Current conditions at

CW8386 Thermopolis (C8386)

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

NA

45°F

7°C

Humidity 75%
Wind Speed N 5 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 37°F (3°C)
Visibility NA
Wind Chill42°F (6°C)
Last update 18 Nov 05:25 PM MST
Extended Forecast for

Thermopolis WY

  • Tonight

    Tonight: Partly cloudy, with a low around 31. South southwest wind around 6 mph.

    Low: 31 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 55. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 55 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 28. Light and variable wind becoming north northwest around 5 mph.

    Low: 28 °F

    Partly Cloudy

  • Thursday

    Thursday: Patchy fog before 7am. Otherwise, sunny, with a high near 52. Light and variable wind.

    High: 52 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 53. Light south wind.

    High: 53 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 31. South southwest wind around 6 mph.
Wednesday
Mostly sunny, with a high near 55. Calm wind becoming northeast around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 28. Light and variable wind becoming north northwest around 5 mph.
Thursday
Patchy fog before 7am. Otherwise, sunny, with a high near 52. Light and variable wind.
Thursday Night
Mostly clear, with a low around 28. Calm wind.
Friday
Sunny, with a high near 53. Light south wind.
Friday Night
Mostly clear, with a low around 26. Calm wind.
Saturday
Sunny, with a high near 51.
Saturday Night
Mostly clear, with a low around 26.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Mostly sunny, with a high near 54.
Monday Night
A slight chance of rain and snow showers. Partly cloudy, with a low around 24.
Tuesday
Scattered rain and snow showers. Partly sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Thermopolis WY
 43.64°N 108.23°W (Elev. 4436 ft)
Last Update:
5:17 pm MST Nov 18, 2025
Forecast Valid:
5pm MST Nov 18, 2025-6pm MST Nov 25, 2025
 
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