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.

Mostly Cloudy

70°F

21°C

Humidity 76%
Wind Speed NW 9 mph
Barometer 29.74 in (1005.7 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 18 Jun 5:51 am CDT
Extended Forecast for

Earth City MO

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Increasing clouds, with a high near 78. Northwest wind 5 to 8 mph.

    High: 78 °F

    Mostly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 60. Northwest wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Partly Cloudy
    then Patchy
    Fog

  • Juneteenth

    Juneteenth: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 85. Light and variable wind.

    High: 85 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 87. Calm wind becoming south around 5 mph in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 90%.

    High: 84 °F

    Showers then
    T-storms

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.

    Low: 62 °F

    Showers
    Likely

  • Monday

    Monday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Increasing clouds, with a high near 78. Northwest wind 5 to 8 mph.
Tonight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 60. Northwest wind around 5 mph becoming calm in the evening.
Juneteenth
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 85. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 66. Calm wind.
Saturday
Mostly sunny, with a high near 87. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.
Sunday
Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 90%.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Monday
Partly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Mostly sunny, with a high near 84.
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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 am CDT Jun 18, 2026
Forecast Valid:
6am CDT Jun 18, 2026-6pm CDT Jun 24, 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