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

Hazardous Weather Conditions

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Mostly Cloudy

82°F

28°C

Humidity 79%
Wind Speed NE 7 mph
Barometer 29.87 in (1010.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 27 Jun 2:54 pm CDT
Extended Forecast for

Wentzville MO

Flood Advisory until June 27, 04:30pm
Extreme Heat Warning June 28, 12:00pm until July 3, 12:00am
Click here for hazard details and duration
Flood Advisory
Extreme Heat Warning
  •  
    Flood Advisory until June 27, 04:30pm

    NOW until 4:30pm Sat

    Flood Advisory

  • This Afternoon

    High: 84 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly between 9pm and 5am. Partly cloudy, with a low around 71. Light and variable wind.

    Low: 71 °F

    Chance
    T-storms

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 94. Heat index values as high as 105. South wind 5 to 9 mph.

    High: 94 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 74. South wind 5 to 8 mph.

    Low: 74 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 95. South wind 6 to 9 mph.

    High: 95 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 75.

    Low: 75 °F

    Clear

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Calm wind.
Tonight
A 40 percent chance of showers and thunderstorms, mainly between 9pm and 5am. Partly cloudy, with a low around 71. Light and variable wind.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 94. Heat index values as high as 105. South wind 5 to 9 mph.
Sunday Night
Increasing clouds, with a low around 74. South wind 5 to 8 mph.
Monday
Mostly sunny, with a high near 95. South wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny and hot, with a high near 97.
Tuesday Night
Clear, with a low around 75.
Wednesday
Sunny, with a high near 96.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 95.
Thursday Night
Partly cloudy, with a low around 74.
Friday
Sunny, with a high near 95.
Friday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 74.
Independence Day
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wentzville MO
 38.81°N 90.88°W (Elev. 633 ft)
Last Update:
2:31 pm CDT Jun 27, 2026
Forecast Valid:
3pm CDT Jun 27, 2026-6pm CDT Jul 4, 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