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

Heavy Rain and Thunderstorms in the Plains; Snow in the Northern Rockies; Heavy Rain in Guam

A storm system moving over the Rockies today will bring marginal risks for excessive rainfall and severe thunderstorms from parts of New Mexico into western South Dakota. Heavy snow expected from northwestern Wyoming into southern Montana. Ongoing heavy showers and thunderstorms from Invest 96W could result in localized flash flooding, particularly in central or southern Guam early this morning. Read More >

Current conditions at

South Valley Regional Airport (KSVR)

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

Overcast

52°F

11°C

Humidity 87%
Wind Speed NA NA MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 15 Oct 09:35 AM MDT
Extended Forecast for

Riverton UT

  • Today

    Today: Showers and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms after 3pm. High near 58. South southeast wind around 10 mph. Chance of precipitation is 80%.

    High: 58 °F

    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely after midnight. Mostly cloudy, with a low around 41. South southeast wind 3 to 7 mph. Chance of precipitation is 60%.

    Low: 41 °F

    Showers
    Likely

  • Thursday

    Thursday: A 50 percent chance of showers. Mostly cloudy, with a high near 53. South wind around 6 mph becoming light and variable in the afternoon.

    High: 53 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 59. Calm wind becoming south southeast around 6 mph in the morning.

    High: 59 °F

    Mostly Sunny

  • Friday Night

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

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms after 3pm. High near 58. South southeast wind around 10 mph. Chance of precipitation is 80%.
Tonight
A chance of showers and thunderstorms, then showers likely after midnight. Mostly cloudy, with a low around 41. South southeast wind 3 to 7 mph. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 53. South wind around 6 mph becoming light and variable in the afternoon.
Thursday Night
Partly cloudy, with a low around 39. Calm wind.
Friday
Mostly sunny, with a high near 59. Calm wind becoming south southeast around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 41.
Saturday
Sunny, with a high near 64.
Saturday Night
Mostly clear, with a low around 44.
Sunday
Sunny, with a high near 71.
Sunday Night
A chance of showers after midnight. Partly cloudy, with a low around 43.
Monday
A chance of showers. Partly sunny, with a high near 61.
Monday Night
A slight chance of rain and snow showers. Some thunder is also possible. Partly cloudy, with a low around 37.
Tuesday
Mostly sunny, with a high near 58.
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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:
3:04 am MDT Oct 15, 2025
Forecast Valid:
10am MDT Oct 15, 2025-6pm MDT Oct 21, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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