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

Heavy Rain Across the Southern US; Unsettled Pattern in the Pacific Northwest

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains Friday, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. High elevation snow and mixed precipitation and rain in the lower elevations will impact the Pacific Northwest this weekend before a stronger system moves in early next week. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

34°F

1°C

Humidity 55%
Wind Speed WNW 12 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 12 Feb 11:20 PM MST
Extended Forecast for

3 Miles WNW Arapahoe WY

  • Tonight

    Tonight: Partly cloudy, with a low around 23. West wind around 6 mph.

    Low: 23 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 52. West wind 3 to 6 mph.

    High: 52 °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 53. West southwest wind around 6 mph becoming east southeast in the afternoon.

    High: 53 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24. Southwest wind around 6 mph.

    Low: 24 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 58. Southwest wind 5 to 13 mph.

    High: 58 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 24. West southwest wind 5 to 10 mph.

    Low: 24 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 57. Breezy.

    High: 57 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: A 30 percent chance of showers after 11pm. Partly cloudy, with a low around 33. Breezy.

    Low: 33 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Tonight
Partly cloudy, with a low around 23. West wind around 6 mph.
Friday
Sunny, with a high near 52. West wind 3 to 6 mph.
Friday Night
Mostly clear, with a low around 21. West wind around 7 mph.
Saturday
Mostly sunny, with a high near 53. West southwest wind around 6 mph becoming east southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 24. Southwest wind around 6 mph.
Sunday
Partly sunny, with a high near 58. Southwest wind 5 to 13 mph.
Sunday Night
Partly cloudy, with a low around 24. West southwest wind 5 to 10 mph.
Washington's Birthday
Sunny, with a high near 57. Breezy.
Monday Night
A 30 percent chance of showers after 11pm. Partly cloudy, with a low around 33. Breezy.
Tuesday
A chance of rain and snow showers. Partly sunny, with a high near 51. Breezy. Chance of precipitation is 50%.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 24. Breezy.
Wednesday
A slight chance of snow showers. Partly sunny, with a high near 46. Breezy.
Wednesday Night
A slight chance of snow showers. Mostly cloudy, with a low around 18. Breezy.
Thursday
Mostly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Arapahoe WY
 42.99°N 108.56°W (Elev. 5197 ft)
Last Update:
11:01 pm MST Feb 12, 2026
Forecast Valid:
11pm MST Feb 12, 2026-6pm MST Feb 19, 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