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

67°F

19°C

Humidity 81%
Wind Speed Calm
Barometer 29.92 in (1012.7 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 29 Sep 8:54 pm CDT
Extended Forecast for

Dardenne Prairie MO

  • Tonight

    Tonight: Mostly cloudy, with a low around 68. South wind around 6 mph.

    Low: 68 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 88. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 88 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Cloudy, then gradually becoming partly cloudy, with a low around 72. South wind 5 to 8 mph, with gusts as high as 20 mph.

    Low: 72 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 85. South wind 6 to 8 mph. Chance of precipitation is 50%.

    High: 85 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 65. South wind around 5 mph becoming light and variable. Chance of precipitation is 90%.

    Low: 65 °F

    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.

    High: 70 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers. Partly sunny, with a high near 68.

    High: 68 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 68. South wind around 6 mph.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 88. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Wednesday Night
Cloudy, then gradually becoming partly cloudy, with a low around 72. South wind 5 to 8 mph, with gusts as high as 20 mph.
Thursday
A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 85. South wind 6 to 8 mph. Chance of precipitation is 50%.
Thursday Night
Showers and possibly a thunderstorm. Low around 65. South wind around 5 mph becoming light and variable. Chance of precipitation is 90%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.
Friday Night
Mostly cloudy, with a low around 55.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 50.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dardenne Prairie MO
 38.74°N 90.74°W (Elev. 502 ft)
Last Update:
6:16 pm CDT Sep 29, 2026
Forecast Valid:
9pm CDT Sep 29, 2026-6pm CDT Oct 6, 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