Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. Read More >

Current conditions at

Mesquite (CMP27)

Lat: 36.81444°NLon: 114.05065°WElev: 1767.0ft.

NA

78°F

26°C

Humidity 26%
Wind Speed WNW 2 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Heat Index78°F (26°C)
Last update 31 Aug 06:40 AM PDT
Extended Forecast for

17 Miles S Saint George UT

Flood Watch August 31, 09:00am until September 1, 12:00am
Click here for hazard details and duration
Flood Watch
  • Today

    Today: Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm.  High near 77. South wind 9 to 14 mph.  Chance of precipitation is 90%.

    High: 77 °F

    Showers
    Likely then
    Showers

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms, mainly between 9pm and 10pm.  Mostly clear, with a low around 60. South southeast wind 10 to 15 mph.

    Low: 60 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81. Breezy, with a southwest wind 16 to 23 mph, with gusts as high as 30 mph.

    High: 81 °F

    Sunny then
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. South wind 16 to 20 mph, with gusts as high as 28 mph.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81. Breezy, with a southwest wind 16 to 22 mph, with gusts as high as 29 mph.

    High: 81 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83. Breezy.

    High: 83 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms after 11am.  Sunny, with a high near 83. Breezy.

    High: 83 °F

    Slight Chance
    T-storms and
    Breezy

Detailed Forecast

Today
Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 77. South wind 9 to 14 mph. Chance of precipitation is 90%.
Tonight
A 10 percent chance of showers and thunderstorms, mainly between 9pm and 10pm. Mostly clear, with a low around 60. South southeast wind 10 to 15 mph.
Tuesday
Sunny, with a high near 81. Breezy, with a southwest wind 16 to 23 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly clear, with a low around 61. South wind 16 to 20 mph, with gusts as high as 28 mph.
Wednesday
Sunny, with a high near 81. Breezy, with a southwest wind 16 to 22 mph, with gusts as high as 29 mph.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 83. Breezy.
Thursday Night
Mostly clear, with a low around 63.
Friday
A slight chance of showers and thunderstorms after 11am. Sunny, with a high near 83. Breezy.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 81.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles S Saint George UT
 36.83°N 113.56°W (Elev. 4997 ft)
11:32 pm MST Aug 30, 2026
7am MST Aug 31, 2026-6pm MST Sep 6, 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