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

Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

30°F

-1°C

Humidity 42%
Wind Speed E 4 MPH
Barometer 30.36 in (1028.11 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 29 Dec 02:05 PM MST
Extended Forecast for

Riverton WY

  • This Afternoon

    This Afternoon: Sunny, with a high near 33. North northeast wind 3 to 5 mph.

    High: 33 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 11. Calm wind becoming south around 6 mph.

    Low: 11 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 36. Light and variable wind.

    High: 36 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 15. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 15 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 42. Light and variable wind.

    High: 42 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 20. South wind 3 to 5 mph.

    Low: 20 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 45. South wind 3 to 6 mph.

    High: 45 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 33. North northeast wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 11. Calm wind becoming south around 6 mph.
Tuesday
Sunny, with a high near 36. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 15. Calm wind becoming south southwest around 5 mph after midnight.
Wednesday
Mostly sunny, with a high near 42. Light and variable wind.
Wednesday Night
Mostly cloudy, with a low around 20. South wind 3 to 5 mph.
New Year's Day
Mostly cloudy, with a high near 45. South wind 3 to 6 mph.
Thursday Night
Mostly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 51.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 52.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Mostly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.38°W (Elev. 4931 ft)
Last Update:
1:51 pm MST Dec 29, 2025
Forecast Valid:
2pm MST Dec 29, 2025-6pm MST Jan 4, 2026
 
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