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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

CW8386 Thermopolis (C8386)

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

NA

36°F

2°C

Humidity 71%
Wind Speed N 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 27°F (-3°C)
Visibility NA
Last update 18 Oct 05:10 AM MDT
Extended Forecast for

Thermopolis WY

  • Today

    Today: Sunny, with a high near 65. South wind around 5 mph becoming calm in the morning.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 39. Calm wind becoming south southwest around 6 mph after midnight.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67. South wind 5 to 10 mph.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. Calm wind becoming south 5 to 7 mph in the evening.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68. South wind 5 to 7 mph becoming calm in the morning.

    High: 68 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73. Breezy.

    High: 73 °F

    Sunny then
    Mostly Sunny
    and Breezy

Detailed Forecast

Today
Sunny, with a high near 65. South wind around 5 mph becoming calm in the morning.
Tonight
Mostly clear, with a low around 39. Calm wind becoming south southwest around 6 mph after midnight.
Monday
Sunny, with a high near 67. South wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 41. Calm wind becoming south 5 to 7 mph in the evening.
Tuesday
Sunny, with a high near 68. South wind 5 to 7 mph becoming calm in the morning.
Tuesday Night
Mostly clear, with a low around 44. Calm wind.
Wednesday
Sunny, with a high near 68. Calm wind becoming south 5 to 9 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Sunny, with a high near 73. Breezy.
Thursday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 48. Breezy.
Friday
A chance of showers. Partly sunny, with a high near 68. Breezy.
Friday Night
Showers likely. Mostly cloudy, with a low around 41. Breezy.
Saturday
A chance of showers. Partly sunny, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Thermopolis WY
 43.64°N 108.2°W (Elev. 4400 ft)
Last Update:
2:47 am MDT Oct 18, 2026
Forecast Valid:
5am MDT Oct 18, 2026-6pm MDT Oct 24, 2026
 
Forecast Discussion
 
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