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.

Fair

77°F

25°C

Humidity 47%
Wind Speed S 6 mph
Barometer 29.78 in (1007.9 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 17 Oct 6:54 pm CDT
Extended Forecast for

Wentzville MO

  • Tonight

    Tonight: Mostly clear, with a low around 62. Calm wind becoming south 5 to 9 mph in the evening.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. High near 74. Southwest wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

    High: 74 °F

    Heavy Rain

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 10pm, then showers likely. Some of the storms could produce heavy rainfall. Low around 47. Southwest wind 7 to 12 mph becoming northwest 13 to 18 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%.

    Low: 47 °F

    Heavy Rain

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 64. Northwest wind 14 to 18 mph, with gusts as high as 30 mph.

    High: 64 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 44. West wind around 6 mph becoming light and variable.

    Low: 44 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Tuesday Night

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

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 62. Calm wind becoming south 5 to 9 mph in the evening.
Saturday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. High near 74. Southwest wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm before 10pm, then showers likely. Some of the storms could produce heavy rainfall. Low around 47. Southwest wind 7 to 12 mph becoming northwest 13 to 18 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 64. Northwest wind 14 to 18 mph, with gusts as high as 30 mph.
Sunday Night
Clear, with a low around 44. West wind around 6 mph becoming light and variable.
Monday
Sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 62.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
Sunny, with a high near 65.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 45.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 69.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 66.
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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:
7:21 pm CDT Oct 17, 2025
Forecast Valid:
7pm CDT Oct 17, 2025-6pm CDT Oct 24, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation