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

Pacific Storm System Moves Inland; Strong Storm in Alaska

A Pacific storm system will bring low elevation/valley rain and mountain snow as it moves inland to the central Great Basin through the central Rockies through Thursday. Scattered thunderstorms are likely from California into the Great Basin. A large low pressure system continues to bring snow, blizzard conditions, damaging winds, and mixed precipitation along the Bering Sea and Southwest Alaska. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

46°F

8°C

Humidity 28%
Wind Speed E 4 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 11 Feb 04:00 PM MST
Extended Forecast for

Riverton WY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 49. Calm wind.

    High: 49 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. Light and variable wind becoming north around 6 mph.

    Low: 21 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 53. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 53 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 22. Northwest wind around 6 mph becoming southwest in the evening.

    Low: 22 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 52. West southwest wind around 5 mph becoming light and variable.

    High: 52 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 19. Northwest wind around 6 mph becoming west southwest after midnight.

    Low: 19 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 53. Light and variable wind becoming southeast around 6 mph in the afternoon.

    High: 53 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 49. Calm wind.
Tonight
Mostly cloudy, with a low around 21. Light and variable wind becoming north around 6 mph.
Thursday
Mostly sunny, with a high near 53. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 22. Northwest wind around 6 mph becoming southwest in the evening.
Friday
Sunny, with a high near 52. West southwest wind around 5 mph becoming light and variable.
Friday Night
Mostly clear, with a low around 19. Northwest wind around 6 mph becoming west southwest after midnight.
Saturday
Mostly sunny, with a high near 53. Light and variable wind becoming southeast around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 23.
Sunday
Partly sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 27.
Washington's Birthday
Mostly sunny, with a high near 59. Breezy.
Monday Night
A chance of showers. Mostly cloudy, with a low around 29. Breezy.
Tuesday
A slight chance of snow showers. Partly sunny, with a high near 54. Breezy.
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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:
4:17 pm MST Feb 11, 2026
Forecast Valid:
4pm MST Feb 11, 2026-6pm MST Feb 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation