Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain Returns to California

Lake effect snow will continue through Friday bringing significant snowfall to areas east to southeast of the Great Lakes. Snow squalls may impact New Year's Eve travel this evening and overnight across parts of the Great Lakes, Ohio Valley, Mid-Atlantic, and Upstate New York. Heavy rain will bring another flash flooding threat for southern California New Year's Eve into New Year's Day. Read More >

Current conditions at

Riverton Regional Airport (KRIW)

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

Clear

25°F

-4°C

Humidity 68%
Wind Speed N 0 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 31 Dec 08:53 AM MST
Extended Forecast for

Riverton WY

  • Today

    Today: Sunny, with a high near 43. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 43 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 21. Light and variable wind.

    Low: 21 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 44. Light and variable wind becoming west northwest 5 to 7 mph in the morning.

    High: 44 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 26. South southwest wind around 6 mph.

    Low: 26 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 53. South southwest wind around 6 mph.

    High: 53 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25. South southwest wind around 7 mph.

    Low: 25 °F

    Partly Cloudy

  • Saturday

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

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 43. Calm wind becoming northeast around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 21. Light and variable wind.
New Year's Day
Mostly cloudy, with a high near 44. Light and variable wind becoming west northwest 5 to 7 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 26. South southwest wind around 6 mph.
Friday
Mostly sunny, with a high near 53. South southwest wind around 6 mph.
Friday Night
Partly cloudy, with a low around 25. South southwest wind around 7 mph.
Saturday
Mostly sunny, with a high near 52. South southwest wind 6 to 11 mph.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton WY
 43.02°N 108.38°W (Elev. 4931 ft)
8:02 am MST Dec 31, 2025
9am MST Dec 31, 2025-6pm MST Jan 6, 2026
 
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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