Winter Storm to Impact the Northern Mid-Atlantic and Interior Northeast; heavy rain in the Southeast

A storm system will bring a variety of hazards to the Eastern US. Wintry precipitation is expected from the central Appalachians to the Northeast. Heavy snow is expected for interior New England and the northern Mid-Atlantic through the night, and icing will continue in the Appalachians this morning. On the south side of the system, heavy rain and thunderstorms will persist across the Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

36°F

2°C

Humidity 51%
Wind Speed S 6 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 02 Dec 10:35 AM MST
Extended Forecast for

Riverton WY

  • Today

    Today: A chance of flurries after 5pm.  Mostly sunny, with a high near 41. West northwest wind 5 to 8 mph becoming north northeast in the afternoon.

    High: 41 °F

    Chance
    Flurries

  • Tonight

    Tonight: Snow showers likely, mainly between 11pm and midnight.  Mostly cloudy, with a low around 19. North northeast wind 5 to 9 mph becoming light northwest.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Snow Showers
    Likely

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 32. North northwest wind around 6 mph becoming light and variable.

    High: 32 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 9. Wind chill values as low as zero. Southwest wind 5 to 7 mph.

    Low: 9 °F

    Mostly Clear

  • Thursday

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

    High: 35 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 15. West southwest wind around 7 mph.

    Low: 15 °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 44. Chance of precipitation is 20%.

    High: 44 °F

    Slight Chance
    Rain/Snow

Detailed Forecast

Today
A chance of flurries after 5pm. Mostly sunny, with a high near 41. West northwest wind 5 to 8 mph becoming north northeast in the afternoon.
Tonight
Snow showers likely, mainly between 11pm and midnight. Mostly cloudy, with a low around 19. North northeast wind 5 to 9 mph becoming light northwest. 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 6 mph becoming light and variable.
Wednesday Night
Mostly clear, with a low around 9. Wind chill values as low as zero. Southwest wind 5 to 7 mph.
Thursday
Mostly sunny, with a high near 35. West southwest wind around 6 mph.
Thursday Night
Partly cloudy, with a low around 15. West 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 44. 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 40.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.04°N 108.41°W (Elev. 5046 ft)
10:48 am MST Dec 2, 2025
10am MST Dec 2, 2025-6pm MST Dec 8, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database