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

82°F

28°C

Humidity 23%
Wind Speed SSE 21 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 17 Aug 10:55 AM MDT
Extended Forecast for

Riverton UT

  • Today

    Today: A 10 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 91. South southeast wind 9 to 11 mph.

    High: 91 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 65. South wind 6 to 8 mph.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94. South wind 8 to 10 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 65. South wind 6 to 8 mph becoming east in the evening.

    Low: 65 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 98. Southeast wind around 7 mph.

    High: 98 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 98.

    High: 98 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 69.

    Low: 69 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 96.

    High: 96 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Today
A 10 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 91. South southeast wind 9 to 11 mph.
Tonight
Mostly clear, with a low around 65. South wind 6 to 8 mph.
Monday
Sunny, with a high near 94. South wind 8 to 10 mph.
Monday Night
Clear, with a low around 65. South wind 6 to 8 mph becoming east in the evening.
Tuesday
Sunny, with a high near 98. Southeast wind around 7 mph.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Sunny, with a high near 98.
Wednesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 69.
Thursday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 96.
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. Mostly sunny, with a high near 96.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 96.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton UT
 40.53°N 111.95°W (Elev. 4544 ft)
Last Update:
3:05 am MDT Aug 17, 2025
Forecast Valid:
11am MDT Aug 17, 2025-6pm MDT Aug 23, 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