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

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

CW8386 Thermopolis (C8386)

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

NA

71°F

22°C

Humidity 40%
Wind Speed N 17 MPH
Barometer 29.62 in (1003.05 mb)
Dewpoint 45°F (7°C)
Visibility NA
Last update 10 Oct 04:56 PM MDT
Extended Forecast for

Thermopolis WY

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Mostly sunny, with a steady temperature around 73. Breezy, with a south wind around 15 mph, with gusts as high as 24 mph.

    High: 73 °F

    Slight Chance
    Showers and
    Breezy

  • Tonight

    Tonight: A 50 percent chance of showers, mainly after 11pm. Increasing clouds, with a low around 45. South southwest wind 8 to 13 mph becoming light and variable. Winds could gust as high as 21 mph.

    Low: 45 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers. High near 56. North northeast wind 7 to 10 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 2am, then a chance of showers between 2am and 3am. Low around 33. North wind 10 to 13 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 33 °F

    Showers then
    Showers
    Likely

  • Columbus Day

    Columbus Day: A 20 percent chance of showers before noon. Partly sunny, with a high near 55. North wind 7 to 10 mph.

    High: 55 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Showers likely, mainly after midnight. Mostly cloudy, with a low around 32. North wind around 6 mph becoming calm after midnight. Chance of precipitation is 60%.

    Low: 32 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 40 percent chance of showers. Partly sunny, with a high near 56. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 56 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 34. Chance of precipitation is 70%.

    Low: 34 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 50 percent chance of showers. Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly sunny, with a steady temperature around 73. Breezy, with a south wind around 15 mph, with gusts as high as 24 mph.
Tonight
A 50 percent chance of showers, mainly after 11pm. Increasing clouds, with a low around 45. South southwest wind 8 to 13 mph becoming light and variable. Winds could gust as high as 21 mph.
Sunday
Showers. High near 56. North northeast wind 7 to 10 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Showers and thunderstorms before 2am, then a chance of showers between 2am and 3am. Low around 33. North wind 10 to 13 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Columbus Day
A 20 percent chance of showers before noon. Partly sunny, with a high near 55. North wind 7 to 10 mph.
Monday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 32. North wind around 6 mph becoming calm after midnight. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of showers. Partly sunny, with a high near 56. Calm wind becoming north 5 to 8 mph in the afternoon.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 34. Chance of precipitation is 70%.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 56.
Wednesday Night
A 40 percent chance of showers, mainly before midnight. Mostly cloudy, with a low around 34.
Thursday
A chance of showers. Mostly sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 31.
Friday
Sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 34.
Saturday
Sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Thermopolis WY
 43.66°N 108.2°W (Elev. 4360 ft)
Last Update:
4:33 pm MDT Oct 10, 2026
Forecast Valid:
5pm MDT Oct 10, 2026-6pm MDT Oct 17, 2026
 
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