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

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Thunderstorm in Vicinity

76°F

24°C

Humidity 91%
Wind Speed SW 7 mph
Barometer 29.59 in (1001.1 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 17 Jun 11:54 pm CDT
Extended Forecast for

Wentzville MO

  • Overnight

    Overnight: Partly cloudy, with a low around 67. West wind 5 to 7 mph.

    Low: 67 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers between 1pm and 2pm. Increasing clouds, with a high near 80. Northwest wind 3 to 7 mph. Chance of precipitation is 20%.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. Light north wind.

    Low: 58 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 84. Calm wind.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 85.

    High: 85 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 84. Chance of precipitation is 80%.

    High: 84 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 64. Chance of precipitation is 80%.

    Low: 64 °F

    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 67. West wind 5 to 7 mph.
Thursday
A slight chance of showers between 1pm and 2pm. Increasing clouds, with a high near 80. Northwest wind 3 to 7 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 58. Light north wind.
Juneteenth
Mostly sunny, with a high near 84. Calm wind.
Friday Night
Partly cloudy, with a low around 64. Calm wind.
Saturday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 85.
Saturday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Sunday
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 84. Chance of precipitation is 80%.
Sunday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 64. Chance of precipitation is 80%.
Monday
Partly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wentzville MO
 38.81°N 90.85°W (Elev. 633 ft)
Last Update:
10:31 pm CDT Jun 17, 2026
Forecast Valid:
12am CDT Jun 18, 2026-6pm CDT Jun 24, 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