Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

54°F

12°C

Humidity 37%
Wind Speed W 28 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 10 Dec 06:05 PM MST
Extended Forecast for

Riverton WY

  • Tonight

    Tonight: Partly cloudy, with a low around 30. South southwest wind around 9 mph.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 55. South wind 6 to 10 mph becoming northwest in the afternoon.

    High: 55 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 27. South southwest wind 7 to 10 mph.

    Low: 27 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 53. West southwest wind 6 to 8 mph.

    High: 53 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 29. Southwest wind around 9 mph.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 53. Southwest wind 6 to 8 mph becoming north northwest in the afternoon.

    High: 53 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 23. South wind around 5 mph.

    Low: 23 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 30. South southwest wind around 9 mph.
Thursday
Mostly sunny, with a high near 55. South wind 6 to 10 mph becoming northwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 27. South southwest wind 7 to 10 mph.
Friday
Partly sunny, with a high near 53. West southwest wind 6 to 8 mph.
Friday Night
Mostly cloudy, with a low around 29. Southwest wind around 9 mph.
Saturday
Mostly sunny, with a high near 53. Southwest wind 6 to 8 mph becoming north northwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 23. South wind around 5 mph.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 23.
Monday
Mostly sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 54.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
A slight chance of rain and snow showers. Mostly sunny, with a high near 52. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.38°W (Elev. 4931 ft)
5:47 pm MST Dec 10, 2025
6pm MST Dec 10, 2025-6pm MST Dec 17, 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