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

43°F

6°C

Humidity 28%
Wind Speed E 3 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 11 Feb 01:35 PM MST
Extended Forecast for

3 Miles WNW Arapahoe WY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 50. North wind around 6 mph becoming south southeast.

    High: 50 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 24. North northeast wind around 6 mph becoming light and variable after midnight.

    Low: 24 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 53. Calm wind becoming east northeast around 6 mph in the afternoon.

    High: 53 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 24. North northwest wind around 6 mph becoming west southwest after midnight.

    Low: 24 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 51. West wind around 6 mph becoming north northeast in the afternoon.

    High: 51 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 21. West wind around 7 mph.

    Low: 21 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 52. Southwest wind around 5 mph becoming east in the afternoon.

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 24.

    Low: 24 °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 50. North wind around 6 mph becoming south southeast.
Tonight
Mostly cloudy, with a low around 24. North northeast wind around 6 mph becoming light and variable after midnight.
Thursday
Mostly sunny, with a high near 53. Calm wind becoming east northeast around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 24. North northwest wind around 6 mph becoming west southwest after midnight.
Friday
Sunny, with a high near 51. West wind around 6 mph becoming north northeast in the afternoon.
Friday Night
Mostly clear, with a low around 21. West wind around 7 mph.
Saturday
Mostly sunny, with a high near 52. Southwest wind around 5 mph becoming east in the afternoon.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Partly sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 28.
Washington's Birthday
A slight chance of showers. Mostly sunny, with a high near 58. Breezy.
Monday Night
A chance of showers. Mostly cloudy, with a low around 30. Breezy.
Tuesday
A slight chance of snow showers. Partly sunny, with a high near 53. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Arapahoe WY
 42.99°N 108.56°W (Elev. 5197 ft)
Last Update:
11:31 am MST Feb 11, 2026
Forecast Valid:
1pm MST Feb 11, 2026-6pm MST Feb 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation