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

Tracking Atmospheric River for the West Coast; Space Weather Storming Continues

An atmospheric river will bring threats of gusty to high winds and heavy rainfall to California mainly Thursday into Saturday which may bring areas of flooding and wind damage. Heavy snow will be possible over the Sierra Nevada mountains Thursday into Friday associated with the atmospheric river. Minor to severe geomagnetic storming (space weather) is expected to continue into early Thursday. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

45°F

7°C

Humidity 48%
Wind Speed NE 3 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 12 Nov 09:20 PM MST
Extended Forecast for

Riverton WY

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. West southwest wind 3 to 6 mph.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 65. Light and variable wind becoming north around 6 mph in the afternoon.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 36. South southwest wind 9 to 13 mph.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 66. Breezy, with a south southwest wind 11 to 17 mph, with gusts as high as 29 mph.

    High: 66 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 35. Southwest wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 61. Southwest wind around 7 mph.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30. West southwest wind around 6 mph.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 34. West southwest wind 3 to 6 mph.
Thursday
Sunny, with a high near 65. Light and variable wind becoming north around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 36. South southwest wind 9 to 13 mph.
Friday
Mostly sunny, with a high near 66. Breezy, with a south southwest wind 11 to 17 mph, with gusts as high as 29 mph.
Friday Night
Partly cloudy, with a low around 35. Southwest wind 9 to 13 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 61. Southwest wind around 7 mph.
Saturday Night
Partly cloudy, with a low around 30. West southwest wind around 6 mph.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 33.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 52.
Monday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 27.
Tuesday
A slight chance of rain and snow showers. Partly sunny, with a high near 44.
Tuesday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 21.
Wednesday
Partly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.35°W (Elev. 4905 ft)
Last Update:
8:31 pm MST Nov 12, 2025
Forecast Valid:
9pm MST Nov 12, 2025-6pm MST Nov 19, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation