Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

79°F

26°C

Humidity 29%
Wind Speed E 3 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 27 Aug 07:20 PM MDT
Extended Forecast for

Riverton WY

  • Tonight

    Tonight: Isolated showers and thunderstorms before 9pm.  Mostly cloudy, with a low around 61. North wind 6 to 8 mph becoming southwest after midnight.  Chance of precipitation is 10%.

    Low: 61 °F

    Isolated
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: Isolated showers and thunderstorms after noon.  Partly sunny, with a high near 87. Light and variable wind becoming west southwest 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 10%.

    High: 87 °F

    Mostly Sunny
    then Isolated
    T-storms

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 61. West southwest wind 5 to 11 mph becoming north in the evening. Winds could gust as high as 21 mph.

    Low: 61 °F

    Mostly Cloudy

  • Saturday

    Saturday: Scattered showers and thunderstorms after noon.  Partly sunny, with a high near 83. Breezy, with a west southwest wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph.  Chance of precipitation is 30%.

    High: 83 °F

    Partly Sunny
    then
    Scattered
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 58. Breezy, with a southwest wind 7 to 15 mph, with gusts as high as 25 mph.

    Low: 58 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 82. Breezy, with a southwest wind 11 to 17 mph, with gusts as high as 31 mph.

    High: 82 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. West wind 8 to 14 mph, with gusts as high as 22 mph.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Tonight
Isolated showers and thunderstorms before 9pm. Mostly cloudy, with a low around 61. North wind 6 to 8 mph becoming southwest after midnight. Chance of precipitation is 10%.
Friday
Isolated showers and thunderstorms after noon. Partly sunny, with a high near 87. Light and variable wind becoming west southwest 8 to 13 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 10%.
Friday Night
Mostly cloudy, with a low around 61. West southwest wind 5 to 11 mph becoming north in the evening. Winds could gust as high as 21 mph.
Saturday
Scattered showers and thunderstorms after noon. Partly sunny, with a high near 83. Breezy, with a west southwest wind 6 to 11 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 58. Breezy, with a southwest wind 7 to 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 82. Breezy, with a southwest wind 11 to 17 mph, with gusts as high as 31 mph.
Sunday Night
Mostly clear, with a low around 52. West wind 8 to 14 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 55. Breezy.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 55. Breezy.
Thursday
Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.04°N 108.41°W (Elev. 5046 ft)
6:01 pm MDT Aug 27, 2026
7pm MDT Aug 27, 2026-6pm MDT Sep 3, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database