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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

St George Regional Airport (KSGU)

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

Clear

66°F

19°C

Humidity 16%
Wind Speed SE 5 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 20 Sep 03:20 AM MDT
Extended Forecast for

3 Miles ESE Saint George UT

  • Overnight

    Overnight: Clear, with a low around 62. Calm wind.

    Low: 62 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 93. Calm wind.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 65. Light and variable wind.

    Low: 65 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.

    High: 93 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 67. West wind around 5 mph becoming light and variable after midnight.

    Low: 67 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and noon. Mostly sunny, with a high near 89. Chance of precipitation is 20%.

    High: 89 °F

    Slight Chance
    T-storms then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 62. Calm wind.
Sunday
Sunny, with a high near 93. Calm wind.
Sunday Night
Partly cloudy, with a low around 65. Light and variable wind.
Monday
Mostly sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 67. West wind around 5 mph becoming light and variable after midnight.
Tuesday
A slight chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and noon. Mostly sunny, with a high near 89. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Sunny, with a high near 95.
Thursday Night
Mostly clear, with a low around 70.
Friday
Sunny, with a high near 94.
Friday Night
Mostly clear, with a low around 70.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Saint George UT
 37.06°N 113.52°W (Elev. 2769 ft)
Last Update:
12:31 am MDT Sep 20, 2026
Forecast Valid:
3am MDT Sep 20, 2026-6pm MDT Sep 26, 2026
 
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