Heavy Rainfall and Severe Thunderstorms in the Midwest and Ohio Valley Tuesday

Multiple rounds of severe thunderstorms appear likely Tuesday across the Midwest and Ohio Valley, with severe wind gusts in excess of 75 mph as the primary threat. Heavy to excessive rainfall may lead to considerable flash and urban flooding impacts Tuesday across portions of the Ohio Valley. A Moderate Risk (level 3 of 4) of excessive rainfall has been issued. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

68°F

20°C

Humidity 28%
Wind Speed NW 6 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 11 Aug 02:05 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
  • Overnight

    Overnight: Widespread smoke, mainly after 5am. Partly cloudy, with a low around 60. West southwest wind around 5 mph becoming calm.

    Low: 60 °F

    Smoke

  • Tuesday

    Tuesday: Widespread smoke, mainly before 1pm. Partly sunny, then gradually becoming sunny, with a high near 96. Light and variable wind becoming north northwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 96 °F

    Smoke

  • Tuesday Night

    Tuesday Night: Areas of smoke. Mostly cloudy, with a low around 61. North wind 5 to 10 mph becoming light and variable.

    Low: 61 °F

    Areas Smoke

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 90. Light and variable wind becoming east 5 to 7 mph in the morning.

    High: 90 °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 59. West northwest wind 5 to 8 mph becoming east in the evening.  Chance of precipitation is 30%.

    Low: 59 °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 82. North northwest wind 5 to 8 mph becoming east in the morning.  Chance of precipitation is 50%.

    High: 82 °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 53. North wind 5 to 8 mph becoming light and variable  after midnight.  Chance of precipitation is 70%.

    Low: 53 °F

    Showers
    Likely then
    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 83.

    High: 83 °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 53. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    Showers

Detailed Forecast

Overnight
Widespread smoke, mainly after 5am. Partly cloudy, with a low around 60. West southwest wind around 5 mph becoming calm.
Tuesday
Widespread smoke, mainly before 1pm. Partly sunny, then gradually becoming sunny, with a high near 96. Light and variable wind becoming north northwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Areas of smoke. Mostly cloudy, with a low around 61. North wind 5 to 10 mph becoming light and variable.
Wednesday
Mostly cloudy, with a high near 90. Light and variable wind becoming east 5 to 7 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 59. West northwest wind 5 to 8 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 82. North 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 53. 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 83.
Friday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 53. 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 slight chance of showers and thunderstorms. Partly cloudy, with a low around 52.
Sunday
Sunny, with a high near 85.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 54.
Monday
Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.38°W (Elev. 4931 ft)
12:31 am MDT Aug 11, 2026
2am MDT Aug 11, 2026-6pm MDT Aug 17, 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