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

Heavy Rain in the Ohio and Tennessee Valleys; Watching for Tropical Cyclone Development in the Atlantic

Heavy to excessive rainfall may bring areas of flash and urban flooding over portions of the Ohio and Tennessee Valleys. Two tropical waves in the Atlantic are being monitored for tropical cyclone formation within the next few days. One tropical wave will bring periods of heavy rain, thunderstorms, flood risk, and landslides to Puerto Rico and the US Virgin Islands through Friday morning. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

55°F

13°C

Humidity 71%
Wind Speed E 3 MPH
Barometer 30.37 in (1028.45 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 24 Sep 10:30 AM MDT
Extended Forecast for

Riverton WY

  • Today

    Today: Sunny, with a high near 75. Light and variable wind.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 43. Light and variable wind becoming west around 6 mph after midnight.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Calm wind becoming east around 6 mph in the afternoon.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44. Southwest wind 6 to 8 mph.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80. Light and variable wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43. North wind around 7 mph becoming west after midnight.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79. Calm wind becoming east southeast 5 to 7 mph in the afternoon.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 75. Light and variable wind.
Tonight
Mostly clear, with a low around 43. Light and variable wind becoming west around 6 mph after midnight.
Thursday
Sunny, with a high near 80. Calm wind becoming east around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 44. Southwest wind 6 to 8 mph.
Friday
Sunny, with a high near 80. Light and variable wind becoming north northwest 5 to 7 mph in the afternoon.
Friday Night
Mostly clear, with a low around 43. North wind around 7 mph becoming west after midnight.
Saturday
Sunny, with a high near 79. Calm wind becoming east southeast 5 to 7 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 45.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.04°N 108.41°W (Elev. 5046 ft)
Last Update:
6:00 am MDT Sep 24, 2025
Forecast Valid:
10am MDT Sep 24, 2025-6pm MDT Sep 30, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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