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

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

South Valley Regional Airport (KSVR)

Lat: 40.6196°NLon: 111.99016°WElev: 4596.0ft.

Clear

25°F

-4°C

Humidity 73%
Wind Speed SSW 5 MPH
Barometer 30.55 in (1034.54 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 30 Dec 06:15 AM MST
Extended Forecast for

Riverton UT

  • Today

    Today: Sunny, with a high near 45. Calm wind.

    High: 45 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 49. Light and variable wind.

    High: 49 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain after 11pm. Mostly cloudy, with a low around 36. Calm wind becoming south southeast around 6 mph in the evening.

    Low: 36 °F

    Chance Rain

  • New Year's Day

    New Year's Day: Rain. High near 49. South wind 7 to 9 mph. Chance of precipitation is 90%.

    High: 49 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before 11pm. Cloudy, with a low around 41. Chance of precipitation is 70%.

    Low: 41 °F

    Rain Likely

  • Friday

    Friday: A 30 percent chance of rain, mainly before 11am. Mostly cloudy, with a high near 54.

    High: 54 °F

    Chance Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain. Mostly cloudy, with a high near 52.

    High: 52 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 45. Calm wind.
Tonight
Partly cloudy, with a low around 28. Calm wind.
Wednesday
Partly sunny, with a high near 49. Light and variable wind.
Wednesday Night
A 50 percent chance of rain after 11pm. Mostly cloudy, with a low around 36. Calm wind becoming south southeast around 6 mph in the evening.
New Year's Day
Rain. High near 49. South wind 7 to 9 mph. Chance of precipitation is 90%.
Thursday Night
Rain likely, mainly before 11pm. Cloudy, with a low around 41. Chance of precipitation is 70%.
Friday
A 30 percent chance of rain, mainly before 11am. Mostly cloudy, with a high near 54.
Friday Night
Mostly cloudy, with a low around 41.
Saturday
A chance of rain. Mostly cloudy, with a high near 52.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 38.
Sunday
A chance of rain. Mostly cloudy, with a high near 49.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 33.
Monday
A slight chance of rain and snow. Partly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Riverton UT
 40.53°N 111.95°W (Elev. 4544 ft)
Last Update:
2:04 am MST Dec 30, 2025
Forecast Valid:
6am MST Dec 30, 2025-6pm MST Jan 5, 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