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.

Overcast

70°F

21°C

Humidity 97%
Wind Speed SE 3 mph
Barometer 29.94 in (1013.0 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 14 Oct 4:54 am CDT
Extended Forecast for

Wentzville MO

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Low around 70. Northwest wind around 7 mph. Chance of precipitation is 90%.

    Low: 70 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm, mainly before noon, then a chance of showers and thunderstorms after noon. High near 75. Northwest wind 3 to 6 mph. Chance of precipitation is 80%.

    High: 75 °F

    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Cloudy, with a low around 64. North wind 3 to 6 mph. Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog before 11am. High near 81. East wind 6 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 90%.

    High: 81 °F

    Showers and
    Patchy Fog
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 47. Northwest wind 7 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.

    Low: 47 °F

    Showers

  • Friday

    Friday: Mostly sunny, with a high near 59. Breezy.

    High: 59 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 70. Northwest wind around 7 mph. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm, mainly before noon, then a chance of showers and thunderstorms after noon. High near 75. Northwest wind 3 to 6 mph. Chance of precipitation is 80%.
Wednesday Night
A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Cloudy, with a low around 64. North wind 3 to 6 mph. Chance of precipitation is 40%.
Thursday
Showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog before 11am. High near 81. East wind 6 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 90%.
Thursday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 47. Northwest wind 7 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%.
Friday
Mostly sunny, with a high near 59. Breezy.
Friday Night
Mostly clear, with a low around 38.
Saturday
Sunny, with a high near 62.
Saturday Night
Clear, with a low around 38.
Sunday
Sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Partly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 78.
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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:
4:11 am CDT Oct 14, 2026
Forecast Valid:
4am CDT Oct 14, 2026-6pm CDT Oct 20, 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