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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Current conditions at

Riverton Regional Airport (KRIW)

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

Overcast

32°F

0°C

Humidity 63%
Wind Speed N 0 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 01 Jan 10:53 AM MST
Extended Forecast for

8 Miles NE Riverton WY

  • New Year's Day

    New Year's Day: A 10 percent chance of showers after 5pm. Mostly cloudy, with a high near 44. Calm wind becoming north around 5 mph.

    High: 44 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. West wind around 6 mph becoming calm in the evening.

    Low: 27 °F

    Mostly Cloudy

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 52. Light and variable wind becoming west southwest around 6 mph in the afternoon.

    High: 52 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Increasing clouds, with a low around 26. South wind around 7 mph.

    Low: 26 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 52. South wind 6 to 11 mph.

    High: 52 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 28. South southwest wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 28 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 54. South southwest wind 9 to 14 mph, with gusts as high as 22 mph.

    High: 54 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

Detailed Forecast

New Year's Day
A 10 percent chance of showers after 5pm. Mostly cloudy, with a high near 44. Calm wind becoming north around 5 mph.
Tonight
Mostly cloudy, with a low around 27. West wind around 6 mph becoming calm in the evening.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 52. Light and variable wind becoming west southwest around 6 mph in the afternoon.
Friday Night
Increasing clouds, with a low around 26. South wind around 7 mph.
Saturday
Partly sunny, with a high near 52. South wind 6 to 11 mph.
Saturday Night
Mostly cloudy, with a low around 28. South southwest wind 10 to 13 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 54. South southwest wind 9 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
Partly sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Partly cloudy, with a low around 20.
Wednesday
Partly sunny, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NE Riverton WY
 43.09°N 108.27°W (Elev. 4833 ft)
Last Update:
10:01 am MST Jan 1, 2026
Forecast Valid:
11am MST Jan 1, 2026-6pm MST Jan 7, 2026
 
Forecast Discussion
 
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