Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

Lat: 43.06219°NLon: 108.44701°WElev: 5443.0ft.

Clear

68°F

20°C

Humidity 22%
Wind Speed N 4 MPH
Barometer 30.34 in (1027.43 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 09 Sep 11:53 AM MDT
Extended Forecast for

Riverton WY

  • This Afternoon

    This Afternoon: Sunny, with a high near 81. Northeast wind 5 to 8 mph becoming south southwest.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 45. West northwest wind 8 to 11 mph.

    Low: 45 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 85. West wind 5 to 11 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 53. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 22 mph.

    Low: 53 °F

    Mostly Clear
    and Breezy
    then Mostly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 84. Breezy, with a west wind 8 to 16 mph, with gusts as high as 29 mph.

    High: 84 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49. Breezy, with a west wind 9 to 16 mph becoming east northeast after midnight. Winds could gust as high as 26 mph.

    Low: 49 °F

    Partly Cloudy
    and Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 80. East northeast wind 5 to 9 mph.

    High: 80 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers.  Mostly cloudy, with a low around 50. Chance of precipitation is 40%.

    Low: 50 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 75. Breezy.

    High: 75 °F

    Mostly Sunny
    then Sunny
    and Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 81. Northeast wind 5 to 8 mph becoming south southwest.
Tonight
Clear, with a low around 45. West northwest wind 8 to 11 mph.
Thursday
Sunny, with a high near 85. West wind 5 to 11 mph.
Thursday Night
Partly cloudy, with a low around 53. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 22 mph.
Friday
Mostly sunny, with a high near 84. Breezy, with a west wind 8 to 16 mph, with gusts as high as 29 mph.
Friday Night
Partly cloudy, with a low around 49. Breezy, with a west wind 9 to 16 mph becoming east northeast after midnight. Winds could gust as high as 26 mph.
Saturday
Mostly sunny, with a high near 80. East northeast wind 5 to 9 mph.
Saturday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 75. Breezy.
Sunday Night
Mostly clear, with a low around 42. Breezy.
Monday
Sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.04°N 108.41°W (Elev. 5046 ft)
11:47 am MDT Sep 9, 2026
12pm MDT Sep 9, 2026-6pm MDT Sep 15, 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