Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

CW8386 Thermopolis (C8386)

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

NA

80°F

27°C

Humidity 18%
Wind Speed N 16 MPH
Barometer 29.77 in (1008.13 mb)
Dewpoint 33°F (1°C)
Visibility NA
Heat Index78°F (26°C)
Last update 21 Mar 04:21 PM MDT
Extended Forecast for

Thermopolis WY

Red Flag Warning March 21, 04:36pm until March 21, 09:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning March 21, 04:36pm until March 21, 09:00pm

    NOW until 9:00pm Sat

    Red Flag Warning

  • This Afternoon

    High: 81 °F

    Partly Sunny
    and Windy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 39. Breezy, with a west wind 18 to 23 mph becoming west southwest 6 to 11 mph in the evening. Winds could gust as high as 34 mph.

    Low: 39 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 65. Light and variable wind becoming east northeast 5 to 7 mph in the afternoon.

    High: 65 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 37. East northeast wind 5 to 7 mph becoming calm  in the evening.

    Low: 37 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 72. Calm wind becoming north northeast 5 to 8 mph in the afternoon.

    High: 72 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40. North northeast wind 5 to 8 mph becoming light and variable.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 77. Breezy, with a light southwest wind becoming west 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 77 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Partly sunny, with a steady temperature around 81. Windy, with a west wind 21 to 28 mph, with gusts as high as 41 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 39. Breezy, with a west wind 18 to 23 mph becoming west southwest 6 to 11 mph in the evening. Winds could gust as high as 34 mph.
Sunday
Mostly sunny, with a high near 65. Light and variable wind becoming east northeast 5 to 7 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 37. East northeast wind 5 to 7 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 72. Calm wind becoming north northeast 5 to 8 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 40. North northeast wind 5 to 8 mph becoming light and variable.
Tuesday
Partly sunny, with a high near 77. Breezy, with a light southwest wind becoming west 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 81. Breezy.
Wednesday Night
Mostly cloudy, with a low around 38. Breezy.
Thursday
Mostly sunny, with a high near 66. Breezy.
Thursday Night
Partly cloudy, with a low around 29.
Friday
Mostly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Thermopolis WY
 43.64°N 108.2°W (Elev. 4400 ft)
4:03 pm MDT Mar 21, 2026
4pm MDT Mar 21, 2026-6pm MDT Mar 27, 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