Heavy Rain in the Southern U.S.; Winter Storm to Impact the Northern Mid-Atlantic and Interior Northeast

A storm system stretching from the Tennessee Valley to the Gulf Coast will bring a variety of hazards to the Eastern U.S. through Tuesday. On the south side of the system, heavy rain and thunderstorms will persist across the Southern U.S. Further north, a wintry precipitation mix is expected from the Central Appalachians to the interior Northeast through Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

28°F

-2°C

Humidity 58%
Wind Speed NNW 5 MPH
Barometer 29.78 in (1008.47 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 02 Dec 05:05 AM MST
Extended Forecast for

Riverton WY

  • Today

    Today: Mostly sunny, with a high near 38. Southwest wind 5 to 10 mph becoming light and variable  in the afternoon.

    High: 38 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of snow showers or flurries before 7pm, then snow showers likely, mainly between 7pm and midnight.  Mostly cloudy, with a low around 18. North northeast wind 5 to 7 mph becoming light and variable.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 18 °F

    Snow Showers
    Likely

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 32. North northwest wind around 5 mph becoming light and variable.

    High: 32 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 8. Wind chill values as low as zero. South southwest wind 5 to 7 mph.

    Low: 8 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 35. Southwest wind around 6 mph.

    High: 35 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 14. Southwest wind around 7 mph.

    Low: 14 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 38. South southwest wind 3 to 6 mph.

    High: 38 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow showers.  Mostly cloudy, with a low around 21.

    Low: 21 °F

    Slight Chance
    Snow Showers

  • Saturday

    Saturday: A slight chance of rain and snow showers.  Partly sunny, with a high near 45. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Rain/Snow

Detailed Forecast

Today
Mostly sunny, with a high near 38. Southwest wind 5 to 10 mph becoming light and variable in the afternoon.
Tonight
A chance of snow showers or flurries before 7pm, then snow showers likely, mainly between 7pm and midnight. Mostly cloudy, with a low around 18. North northeast wind 5 to 7 mph becoming light and variable. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 32. North northwest wind around 5 mph becoming light and variable.
Wednesday Night
Mostly clear, with a low around 8. Wind chill values as low as zero. South southwest wind 5 to 7 mph.
Thursday
Mostly sunny, with a high near 35. Southwest wind around 6 mph.
Thursday Night
Partly cloudy, with a low around 14. Southwest wind around 7 mph.
Friday
Mostly sunny, with a high near 38. South southwest wind 3 to 6 mph.
Friday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 21.
Saturday
A slight chance of rain and snow showers. Partly sunny, with a high near 45. Chance of precipitation is 20%.
Saturday Night
A slight chance of rain and snow showers before 11pm. Partly cloudy, with a low around 18. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 41.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.35°W (Elev. 4905 ft)
5:01 am MST Dec 2, 2025
5am MST Dec 2, 2025-6pm MST Dec 8, 2025
 
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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