Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. 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 30%
Wind Speed S 13 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 27 Aug 09:35 AM MDT
Extended Forecast for

Riverton UT

  • Today

    Today: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 97. South southeast wind around 9 mph.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 68. Southeast wind around 7 mph.

    Low: 68 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 10 percent chance of showers and thunderstorms after 3pm.  Partly sunny, with a high near 92. South southeast wind 8 to 10 mph.

    High: 92 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 63. South southeast wind 5 to 8 mph becoming light and variable  after midnight.  Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 9am.  High near 83. Light and variable wind becoming west southwest 5 to 7 mph in the afternoon.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm.  Low around 59. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm.  High near 82. Chance of precipitation is 80%.

    High: 82 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers.  Partly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 84.

    High: 84 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 97. South southeast wind around 9 mph.
Tonight
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 68. Southeast wind around 7 mph.
Friday
A 10 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 92. South southeast wind 8 to 10 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South southeast wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 50%.
Saturday
Showers, with thunderstorms also possible after 9am. High near 83. Light and variable wind becoming west southwest 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm. Low around 59. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and possibly a thunderstorm. High near 82. Chance of precipitation is 80%.
Sunday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 57.
Monday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84.
Monday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 59.
Tuesday
Sunny, with a high near 86.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton UT
 40.5°N 111.95°W (Elev. 4501 ft)
12:31 am MDT Aug 27, 2026
10am MDT Aug 27, 2026-6pm MDT Sep 2, 2026
 
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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