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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

CW8386 Thermopolis (C8386)

Lat: 43.64283°NLon: 108.227°WElev: 4419.52ft.

NA

65°F

18°C

Humidity 76%
Wind Speed N 0 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 57°F (14°C)
Visibility NA
Last update 29 Aug 01:55 AM MDT
Extended Forecast for

East Thermopolis WY

  • Overnight

    Overnight: Mostly cloudy, with a low around 59. Light south wind.

    Low: 59 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 82. Light and variable wind becoming west southwest 5 to 10 mph in the morning.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 10pm. Increasing clouds, with a low around 56. South wind 5 to 8 mph.

    Low: 56 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms between noon and 1pm. Mostly cloudy through mid morning, then becoming sunny, with a high near 81. Breezy, with a south southwest wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 20%.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50. Breezy, with a west wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 23 mph.

    Low: 50 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 84. Calm wind becoming east northeast 5 to 9 mph in the afternoon.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. Northeast wind 5 to 9 mph becoming south southwest after midnight.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers before noon. Sunny, with a high near 86.

    High: 86 °F

    Slight Chance
    Showers then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 59. Light south wind.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 82. Light and variable wind becoming west southwest 5 to 10 mph in the morning.
Saturday Night
A 20 percent chance of showers and thunderstorms before 10pm. Increasing clouds, with a low around 56. South wind 5 to 8 mph.
Sunday
A slight chance of showers and thunderstorms between noon and 1pm. Mostly cloudy through mid morning, then becoming sunny, with a high near 81. Breezy, with a south southwest wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 50. Breezy, with a west wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 23 mph.
Monday
Sunny, with a high near 84. Calm wind becoming east northeast 5 to 9 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 55. Northeast wind 5 to 9 mph becoming south southwest after midnight.
Tuesday
A 20 percent chance of showers before noon. Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Mostly sunny, with a high near 86. Breezy.
Wednesday Night
Partly cloudy, with a low around 53. Breezy.
Thursday
Mostly sunny, with a high near 86. Breezy.
Thursday Night
Mostly clear, with a low around 55. Breezy.
Friday
Sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
East Thermopolis WY
 43.66°N 108.2°W (Elev. 4360 ft)
Last Update:
1:17 am MDT Aug 29, 2026
Forecast Valid:
2am MDT Aug 29, 2026-6pm MDT Sep 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation