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

Showers and Thunderstorms in the Southwest and Ohio Valley; Mountain Snow in the Northeast

Showers and thunderstorms, along with high-elevation snow, will begin to develop over parts of the Southwest late tonight and is expected to continue through Wednesday morning. Mountain snow over parts the Northeast will continue through Tuesday. A few strong to severe storms and heavy rainfall are possible across portions of the Lower Ohio Valley Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

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

Overcast

43°F

6°C

Humidity 86%
Wind Speed SSW 4 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 18 Nov 03:05 AM MST
Extended Forecast for

Riverton WY

  • Overnight

    Overnight: Mostly cloudy, with a low around 33. Southwest wind around 6 mph.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 53. South southwest wind around 6 mph becoming calm in the afternoon.

    High: 53 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 27. South southwest wind 5 to 7 mph.

    Low: 27 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 51. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 51 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26. West wind 3 to 5 mph.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 48. Light and variable wind.

    High: 48 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 33. Southwest wind around 6 mph.
Tuesday
Partly sunny, with a high near 53. South southwest wind around 6 mph becoming calm in the afternoon.
Tuesday Night
Partly cloudy, with a low around 27. South southwest wind 5 to 7 mph.
Wednesday
Mostly sunny, with a high near 51. Calm wind becoming north northeast around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 26. West wind 3 to 5 mph.
Thursday
Sunny, with a high near 48. Light and variable wind.
Thursday Night
Partly cloudy, with a low around 24. Calm wind.
Friday
Mostly sunny, with a high near 50.
Friday Night
Mostly clear, with a low around 23.
Saturday
Sunny, with a high near 50.
Saturday Night
Mostly clear, with a low around 24.
Sunday
Sunny, with a high near 53.
Sunday Night
Partly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.35°W (Elev. 4905 ft)
Last Update:
2:31 am MST Nov 18, 2025
Forecast Valid:
3am MST Nov 18, 2025-6pm MST Nov 24, 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