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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Current conditions at

St George Regional Airport (KSGU)

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

Partly Cloudy

84°F

29°C

Humidity 39%
Wind Speed N 8 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 17 Sep 12:20 PM MDT
Extended Forecast for

Saint George UT

  • This Afternoon

    This Afternoon: Sunny, with a high near 87. Southeast wind around 5 mph becoming west southwest.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 69. Light and variable wind becoming east northeast 5 to 7 mph after midnight.

    Low: 69 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88. East northeast wind 5 to 7 mph becoming southwest in the afternoon.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66. West southwest wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 90. Light and variable wind.

    High: 90 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 87. Southeast wind around 5 mph becoming west southwest.
Tonight
Mostly clear, with a low around 69. Light and variable wind becoming east northeast 5 to 7 mph after midnight.
Friday
Sunny, with a high near 88. East northeast wind 5 to 7 mph becoming southwest in the afternoon.
Friday Night
Mostly clear, with a low around 66. West southwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 90. Light and variable wind.
Saturday Night
Clear, with a low around 64.
Sunday
Sunny, with a high near 91.
Sunday Night
Mostly clear, with a low around 67.
Monday
Mostly sunny, with a high near 91.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 64.
Wednesday
A slight chance of showers and thunderstorms. Sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint George UT
 37.12°N 113.58°W (Elev. 3169 ft)
Last Update:
12:17 pm MDT Sep 17, 2026
Forecast Valid:
12pm MDT Sep 17, 2026-6pm MDT Sep 23, 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