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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

South Valley Regional Airport (KSVR)

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

Clear

70°F

21°C

Humidity 26%
Wind Speed S 12 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 18 Aug 05:35 AM MDT
Extended Forecast for

Riverton UT

  • Today

    Today: Sunny, with a high near 94. South wind around 10 mph.

    High: 94 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 66. South southeast wind 5 to 7 mph.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 99. South wind around 7 mph.

    High: 99 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71. North northwest wind 5 to 7 mph becoming light and variable.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 100. Southeast wind around 7 mph becoming southwest in the afternoon.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 96. Chance of precipitation is 20%.

    High: 96 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 70.

    Low: 70 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 97.

    High: 97 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 94. South wind around 10 mph.
Tonight
Mostly clear, with a low around 66. South southeast wind 5 to 7 mph.
Tuesday
Sunny, with a high near 99. South wind around 7 mph.
Tuesday Night
Mostly clear, with a low around 71. North northwest wind 5 to 7 mph becoming light and variable.
Wednesday
Sunny and hot, with a high near 100. Southeast wind around 7 mph becoming southwest in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 20%.
Thursday
A slight chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 96. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 70.
Friday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 97.
Friday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 70.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 96.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton UT
 40.53°N 111.92°W (Elev. 4390 ft)
Last Update:
3:05 am MDT Aug 18, 2025
Forecast Valid:
5am MDT Aug 18, 2025-6pm MDT Aug 24, 2025
 
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