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.

Fair

52°F

11°C

Humidity 89%
Wind Speed Calm
Barometer 30.11 in (1019.2 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 12 May 2:54 am CDT
Extended Forecast for

Wentzville MO

  • Overnight

    Overnight: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. Light south wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 22 mph.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms between 9pm and midnight. Mostly cloudy, then gradually becoming clear, with a low around 56. Southwest wind around 8 mph becoming northwest after midnight. Chance of precipitation is 20%.

    Low: 56 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 75. Northwest wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 48. North wind around 6 mph becoming calm in the evening.

    Low: 48 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.

    Low: 58 °F

    Partly Cloudy
    then Showers
    Likely

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 64.

    Low: 64 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 52. Calm wind.
Tuesday
Sunny, with a high near 82. Light south wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 22 mph.
Tuesday Night
A slight chance of showers and thunderstorms between 9pm and midnight. Mostly cloudy, then gradually becoming clear, with a low around 56. Southwest wind around 8 mph becoming northwest after midnight. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 75. Northwest wind 7 to 11 mph, with gusts as high as 22 mph.
Wednesday Night
Clear, with a low around 48. North wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 76.
Thursday Night
Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 87.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 64.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Monday
A 50 percent chance of showers and thunderstorms. Partly 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:
1:26 am CDT May 12, 2026
Forecast Valid:
3am CDT May 12, 2026-6pm CDT May 18, 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