Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

Current conditions at

St George Regional Airport (KSGU)

Lat: 37.0451°NLon: 113.50561°WElev: 2872.0ft.

Rain

70°F

21°C

Humidity 77%
Wind Speed ESE 14 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 06 Sep 06:35 PM MDT
Extended Forecast for

2 Miles SW Springdale UT

Flood Watch September 6, 06:53pm until September 7, 12:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch September 6, 06:53pm until September 7, 12:00am

    NOW until 12:00am Mon

    Flood Watch

  • Tonight

    Low: 66 °F

    Chance
    Showers then
    Mostly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 86. East wind 5 to 8 mph becoming west in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 66. West wind 5 to 11 mph becoming east northeast in the evening.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91. East northeast wind 6 to 11 mph becoming light and variable.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. Light and variable wind becoming east northeast 8 to 13 mph after midnight.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 97.

    High: 97 °F

    Sunny

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 66. Light and variable wind becoming east northeast 5 to 7 mph in the evening.
Labor Day
Mostly sunny, with a high near 86. East wind 5 to 8 mph becoming west in the afternoon.
Monday Night
Mostly clear, with a low around 66. West wind 5 to 11 mph becoming east northeast in the evening.
Tuesday
Sunny, with a high near 91. East northeast wind 6 to 11 mph becoming light and variable.
Tuesday Night
Mostly clear, with a low around 70. Light and variable wind becoming east northeast 8 to 13 mph after midnight.
Wednesday
Sunny, with a high near 96.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
Sunny, with a high near 97.
Thursday Night
Mostly clear, with a low around 73.
Friday
Sunny, with a high near 95.
Friday Night
Mostly clear, with a low around 72.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 68.
Sunday
A slight chance of showers and thunderstorms. Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Springdale UT
 37.16°N 113.02°W (Elev. 4045 ft)
12:41 pm MDT Sep 6, 2026
6pm MDT Sep 6, 2026-6pm MDT Sep 13, 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