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

Extremely Critical Fire Weather in the Central Plains; Active Pattern in the West

Gusty to high winds and low relative humidity will bring critical to extremely critical fire weather conditions to the central and southern Plains today into Wednesday. Use caution with any potential ignition sources. Two Pacific storms will impact the western U.S. into Wednesday with gusty winds, low elevation rain and heavy mountain snow. Read More >

Hazardous Weather Conditions

Current conditions at

South Valley Regional Airport (KSVR)

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

Overcast

37°F

3°C

Humidity 80%
Wind Speed N 8 MPH
Barometer 29.7 in (1005.76 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 17 Feb 11:55 AM MST
Extended Forecast for

Riverton UT

Winter Weather Advisory February 18, 03:00am until February 18, 03:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • This Afternoon

    This Afternoon: Snow showers before 5pm, then rain and snow showers likely. Some thunder is also possible. High near 48. South southwest wind around 14 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 48 °F

    Rain/Snow

  • Tonight

    Tonight: Rain and snow likely, becoming all snow after 11pm. Mostly cloudy, with a low around 33. South wind 13 to 18 mph, with gusts as high as 39 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Wednesday

    Wednesday: Snow. Steady temperature around 36. South wind 13 to 17 mph becoming west northwest in the morning. Winds could gust as high as 37 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 36 °F

    Snow

  • Wednesday Night

    Wednesday Night: A 40 percent chance of snow before 11pm. Mostly cloudy, with a low around 18. West wind 5 to 9 mph becoming light and variable after midnight. New snow accumulation of less than a half inch possible.

    Low: 18 °F

    Chance Snow
    then Partly
    Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 11am. Partly sunny, with a high near 37. South wind 5 to 11 mph.

    High: 37 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 22. New snow accumulation of less than one inch possible.

    Low: 22 °F

    Chance Snow

  • Friday

    Friday: Snow likely, mainly before 11am. Mostly cloudy, with a high near 35. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    High: 35 °F

    Snow Likely

  • Friday Night

    Friday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

Detailed Forecast

This Afternoon
Snow showers before 5pm, then rain and snow showers likely. Some thunder is also possible. High near 48. South southwest wind around 14 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tonight
Rain and snow likely, becoming all snow after 11pm. Mostly cloudy, with a low around 33. South wind 13 to 18 mph, with gusts as high as 39 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday
Snow. Steady temperature around 36. South wind 13 to 17 mph becoming west northwest in the morning. Winds could gust as high as 37 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
A 40 percent chance of snow before 11pm. Mostly cloudy, with a low around 18. West wind 5 to 9 mph becoming light and variable after midnight. New snow accumulation of less than a half inch possible.
Thursday
A 20 percent chance of snow after 11am. Partly sunny, with a high near 37. South wind 5 to 11 mph.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 22. New snow accumulation of less than one inch possible.
Friday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 35. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Friday Night
Partly cloudy, with a low around 18.
Saturday
Sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
Partly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Mostly sunny, with a high near 53.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Riverton UT
 40.53°N 111.92°W (Elev. 4390 ft)
Last Update:
11:22 am MST Feb 17, 2026
Forecast Valid:
12pm MST Feb 17, 2026-6pm MST Feb 23, 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