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

70°F

21°C

Humidity 34%
Wind Speed NW 17 G 23 mph
Barometer 30.07 in (1017.6 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 13 May 10:54 am CDT
Extended Forecast for

Wentzville MO

  • Today

    Today: Sunny, with a high near 74. Northwest wind around 14 mph, with gusts as high as 25 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 46. North wind 5 to 8 mph becoming calm in the evening.

    Low: 46 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 75. Calm wind becoming southeast 5 to 7 mph in the morning.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly after 4am. Increasing clouds, with a low around 57. Southeast wind 7 to 9 mph.

    Low: 57 °F

    Partly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 85. South wind around 10 mph, with gusts as high as 20 mph.

    High: 85 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 74. Northwest wind around 14 mph, with gusts as high as 25 mph.
Tonight
Clear, with a low around 46. North wind 5 to 8 mph becoming calm in the evening.
Thursday
Sunny, with a high near 75. Calm wind becoming southeast 5 to 7 mph in the morning.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly after 4am. Increasing clouds, with a low around 57. Southeast wind 7 to 9 mph.
Friday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 85. South wind around 10 mph, with gusts as high as 20 mph.
Friday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Sunday
Mostly sunny, with a high near 91.
Sunday Night
Partly cloudy, with a low around 70.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 93.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Tuesday
Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 80%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wentzville MO
 38.81°N 90.85°W (Elev. 633 ft)
Last Update:
11:26 am CDT May 13, 2026
Forecast Valid:
11am CDT May 13, 2026-6pm CDT May 19, 2026
 
Forecast Discussion
 
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Additional Resources

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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