Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Current conditions at

CW8386 Thermopolis (C8386)

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

NA

59°F

15°C

Humidity 24%
Wind Speed N 5 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 22°F (-6°C)
Visibility NA
Last update 19 May 06:25 PM MDT
Extended Forecast for

East Thermopolis WY

Freeze Warning May 19, 09:00pm until May 20, 08:00am
Click here for hazard details and duration
Freeze Warning
  • Tonight

    Tonight: Partly cloudy, with a low around 33. Breezy, with a south wind 7 to 15 mph, with gusts as high as 22 mph.

    Low: 33 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 68. Light and variable wind becoming west northwest 5 to 9 mph in the afternoon.

    High: 68 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after midnight.  Mostly cloudy, with a low around 39. South wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 39 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Showers, with thunderstorms also possible after noon.  High near 52. Breezy, with a light north wind increasing to 12 to 17 mph in the morning. Winds could gust as high as 25 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 52 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A 50 percent chance of showers.  Mostly cloudy, with a low around 35. Breezy, with a north wind 11 to 16 mph becoming light and variable  after midnight. Winds could gust as high as 24 mph.

    Low: 35 °F

    Chance
    Showers and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 67. Calm wind becoming east southeast around 5 mph in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39. East wind around 6 mph becoming calm  after midnight.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 33. Breezy, with a south wind 7 to 15 mph, with gusts as high as 22 mph.
Wednesday
Mostly sunny, with a high near 68. Light and variable wind becoming west northwest 5 to 9 mph in the afternoon.
Wednesday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 39. South wind 5 to 10 mph becoming light and variable after midnight.
Thursday
Showers, with thunderstorms also possible after noon. High near 52. Breezy, with a light north wind increasing to 12 to 17 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 35. Breezy, with a north wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.
Friday
Mostly sunny, with a high near 67. Calm wind becoming east southeast around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 39. East wind around 6 mph becoming calm after midnight.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 49.
Memorial Day
Sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 51.
Tuesday
Mostly sunny, with a high near 81. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
East Thermopolis WY
 43.64°N 108.2°W (Elev. 4400 ft)
6:01 pm MDT May 19, 2026
6pm MDT May 19, 2026-6pm MDT May 26, 2026
 
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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