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

Flooding Threat Along the Gulf Coast, Southern Rockies and High Plains; Cooler Weather in the Central and Eastern U.S.

Strong thunderstorms may bring excessive rainfall and flooding over parts of the northern Gulf Coast today and over parts of the southern Rockies into the High Plains today through the weekend. A refreshingly cool and dry air mass will continue to produce below average temperatures across the central and eastern U.S. through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

79°F

26°C

Humidity 22%
Wind Speed SE 4 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 31 Aug 01:35 PM MDT
Extended Forecast for

Riverton WY

  • This Afternoon

    This Afternoon: Patchy smoke after 4pm. Sunny, with a high near 83. North northwest wind 5 to 7 mph becoming northeast.

    High: 83 °F

    Patchy Smoke

  • Tonight

    Tonight: Patchy smoke before midnight. Mostly clear, with a low around 50. East northeast wind 5 to 7 mph becoming light and variable.

    Low: 50 °F

    Patchy Smoke
    then Mostly
    Clear

  • Labor Day

    Labor Day: Patchy smoke after 4pm. Sunny, with a high near 87. West wind around 6 mph becoming calm.

    High: 87 °F

    Sunny then
    Patchy Smoke

  • Monday Night

    Monday Night: Patchy smoke before midnight. Partly cloudy, with a low around 52. East northeast wind 5 to 7 mph becoming southwest after midnight.

    Low: 52 °F

    Patchy Smoke
    then Mostly
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Calm wind becoming north northeast 5 to 7 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52. North northeast wind around 7 mph becoming west after midnight.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. West wind 5 to 9 mph becoming northeast in the afternoon.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
Patchy smoke after 4pm. Sunny, with a high near 83. North northwest wind 5 to 7 mph becoming northeast.
Tonight
Patchy smoke before midnight. Mostly clear, with a low around 50. East northeast wind 5 to 7 mph becoming light and variable.
Labor Day
Patchy smoke after 4pm. Sunny, with a high near 87. West wind around 6 mph becoming calm.
Monday Night
Patchy smoke before midnight. Partly cloudy, with a low around 52. East northeast wind 5 to 7 mph becoming southwest after midnight.
Tuesday
Sunny, with a high near 88. Calm wind becoming north northeast 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 52. North northeast wind around 7 mph becoming west after midnight.
Wednesday
Sunny, with a high near 85. West wind 5 to 9 mph becoming northeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 49.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.38°W (Elev. 4931 ft)
Last Update:
1:43 pm MDT Aug 31, 2025
Forecast Valid:
1pm MDT Aug 31, 2025-6pm MDT Sep 6, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation