National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

A Few Clouds

75°F

24°C

Humidity 74%
Wind Speed SE 8 mph
Barometer 29.86 in (1010.4 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 22 Sep 7:51 pm CDT
Extended Forecast for

Earth City MO

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 66. Light south wind.

    Low: 66 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 81. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 60%.

    High: 81 °F

    Patchy Fog
    then Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 66. Light and variable wind becoming northeast around 6 mph after midnight. Chance of precipitation is 80%.

    Low: 66 °F

    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 76. North wind 6 to 9 mph. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Northwest wind around 7 mph. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 77.

    High: 77 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 66. Light south wind.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 81. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 60%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 66. Light and variable wind becoming northeast around 6 mph after midnight. Chance of precipitation is 80%.
Wednesday
Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 76. North wind 6 to 9 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Northwest wind around 7 mph. Chance of precipitation is 30%.
Thursday
A 30 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 57.
Friday
Sunny, with a high near 81.
Friday Night
Clear, with a low around 58.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 60.
Monday
Sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Earth City MO
 38.78°N 90.48°W (Elev. 440 ft)
Last Update:
6:11 pm CDT Sep 22, 2025
Forecast Valid:
8pm CDT Sep 22, 2025-6pm CDT Sep 29, 2025
 
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