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

St George Regional Airport (KSGU)

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

Clear

84°F

29°C

Humidity 37%
Wind Speed SE 4 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 16 Sep 10:15 AM MDT
Extended Forecast for

Washington UT

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 91. East wind 6 to 10 mph becoming west southwest in the afternoon.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 9pm. Low around 69. West southwest wind 7 to 16 mph becoming east northeast in the evening. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Showers

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly before 9am. Mostly sunny, with a high near 86. Northeast wind 5 to 8 mph becoming light and variable in the afternoon.

    High: 86 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 68. Light and variable wind becoming east 5 to 7 mph after midnight.

    Low: 68 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. East wind 5 to 7 mph becoming light and variable.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 91. East wind 6 to 10 mph becoming west southwest in the afternoon.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 9pm. Low around 69. West southwest wind 7 to 16 mph becoming east northeast in the evening. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A 50 percent chance of showers and thunderstorms, mainly before 9am. Mostly sunny, with a high near 86. Northeast wind 5 to 8 mph becoming light and variable in the afternoon.
Thursday Night
Mostly clear, with a low around 68. Light and variable wind becoming east 5 to 7 mph after midnight.
Friday
Sunny, with a high near 89. East wind 5 to 7 mph becoming light and variable.
Friday Night
Clear, with a low around 65.
Saturday
Sunny, with a high near 91.
Saturday Night
Clear, with a low around 64.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
Partly cloudy, with a low around 65.
Monday
Mostly sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Washington UT
 37.13°N 113.5°W (Elev. 2799 ft)
Last Update:
10:18 am MDT Sep 16, 2026
Forecast Valid:
10am MDT Sep 16, 2026-6pm MDT Sep 22, 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