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

Areas of Severe Thunderstorms and Excessive Rainfall; Heat Wave Builds in the Intermountain West and Plains

A slow moving front will bring rounds of strong to severe thunderstorms and heavy rainfall to the central Plains eastward to the east-central U.S.. The first widespread significant heat wave of summer for the Intermountain West and Plains is expected to develop today and expand through next week. Dangerous heat will continue to impact portions of the Southwest and Southeast. Read More >

Current conditions at

CW8386 Thermopolis (C8386)

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

NA

57°F

14°C

Humidity 53%
Wind Speed N 0 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 40°F (4°C)
Visibility NA
Last update 10 Jul 05:55 AM MDT
Extended Forecast for

22 Miles NNW Arminto WY

  • Today

    Today: Sunny, with a high near 77. Southwest wind 9 to 13 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. Southwest wind 7 to 10 mph becoming southeast in the evening.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83. South wind 7 to 11 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62. Breezy, with a west northwest wind 8 to 15 mph becoming east southeast after midnight.

    Low: 62 °F

    Mostly Clear
    then Clear
    and Breezy

  • Sunday

    Sunday: Sunny, with a high near 87. Breezy, with a south southeast wind 9 to 16 mph, with gusts as high as 24 mph.

    High: 87 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66. Windy, with a southeast wind 16 to 21 mph increasing to 25 to 30 mph. Winds could gust as high as 38 mph.

    Low: 66 °F

    Mostly Clear
    and Windy

  • Monday

    Monday: Sunny, with a high near 85. East wind 8 to 14 mph becoming north northwest in the morning. Winds could gust as high as 21 mph.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. Breezy.

    Low: 62 °F

    Mostly Clear
    and Breezy

  • Tuesday

    Tuesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 77. Southwest wind 9 to 13 mph.
Tonight
Mostly clear, with a low around 58. Southwest wind 7 to 10 mph becoming southeast in the evening.
Saturday
Sunny, with a high near 83. South wind 7 to 11 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 62. Breezy, with a west northwest wind 8 to 15 mph becoming east southeast after midnight.
Sunday
Sunny, with a high near 87. Breezy, with a south southeast wind 9 to 16 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 66. Windy, with a southeast wind 16 to 21 mph increasing to 25 to 30 mph. Winds could gust as high as 38 mph.
Monday
Sunny, with a high near 85. East wind 8 to 14 mph becoming north northwest in the morning. Winds could gust as high as 21 mph.
Monday Night
Mostly clear, with a low around 62. Breezy.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 59. Breezy.
Wednesday
A chance of showers and thunderstorms. Sunny, with a high near 79.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Thursday
A chance of showers and thunderstorms. Sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
22 Miles NNW Arminto WY
 43.48°N 107.4°W (Elev. 8051 ft)
Last Update:
6:01 am MDT Jul 10, 2026
Forecast Valid:
6am MDT Jul 10, 2026-6pm MDT Jul 16, 2026
 
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Additional Resources

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Chance of Precipitation