Severe Thunderstorms and Heavy Rain Across the Ohio Valley;

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

73°F

23°C

Humidity 27%
Wind Speed WNW 11 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 11 Aug 07:20 AM MDT
Extended Forecast for

Riverton WY

Red Flag Warning August 11, 12:00pm until August 11, 09:00pm
Click here for hazard details and duration
Red Flag Warning
  • Today

    Today: Widespread smoke, mainly before 1pm. Mostly sunny, with a high near 95. West wind 5 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 95 °F

    Smoke

  • Tonight

    Tonight: Areas of smoke. Mostly cloudy, with a low around 64. North wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 64 °F

    Areas Smoke

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 89. Calm wind becoming southeast 5 to 8 mph in the morning.

    High: 89 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms, then a chance of showers after midnight.  Mostly cloudy, with a low around 60. Northwest wind 6 to 9 mph becoming east in the evening.  Chance of precipitation is 30%.

    Low: 60 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after noon.  Partly sunny, with a high near 81. Northwest wind 5 to 8 mph becoming east in the morning.  Chance of precipitation is 50%.

    High: 81 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before midnight.  Mostly cloudy, with a low around 54. North wind 5 to 8 mph becoming light and variable  after midnight.  Chance of precipitation is 70%.

    Low: 54 °F

    Showers
    Likely then
    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 82. Light and variable wind becoming northwest 5 to 8 mph in the afternoon.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers.  Mostly cloudy, with a low around 54. Chance of precipitation is 40%.

    Low: 54 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Widespread smoke, mainly before 1pm. Mostly sunny, with a high near 95. West wind 5 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 21 mph.
Tonight
Areas of smoke. Mostly cloudy, with a low around 64. North wind 5 to 10 mph becoming light and variable after midnight.
Wednesday
Mostly cloudy, with a high near 89. Calm wind becoming southeast 5 to 8 mph in the morning.
Wednesday Night
A slight chance of showers and thunderstorms, then a chance of showers after midnight. Mostly cloudy, with a low around 60. Northwest wind 6 to 9 mph becoming east in the evening. Chance of precipitation is 30%.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 81. Northwest wind 5 to 8 mph becoming east in the morning. Chance of precipitation is 50%.
Thursday Night
Showers likely and possibly a thunderstorm before midnight. Mostly cloudy, with a low around 54. North wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 70%.
Friday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. Light and variable wind becoming northwest 5 to 8 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 53.
Sunday
Sunny, with a high near 84.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Monday
Sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.04°N 108.41°W (Elev. 5046 ft)
7:17 am MDT Aug 11, 2026
7am MDT Aug 11, 2026-6pm MDT Aug 17, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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