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 and Breezy

37°F

3°C

Humidity 59%
Wind Speed W 24 G 44 mph
Barometer 29.65 in (1003.9 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 20 Feb 1:51 am CST
Extended Forecast for

Greendale MO

  • Overnight

    Overnight: Partly cloudy, with a low around 32. Breezy, with a west wind 18 to 20 mph, with gusts as high as 38 mph.

    Low: 32 °F

    Partly Cloudy
    and Breezy

  • Friday

    Friday: Sunny, with a high near 42. West wind 10 to 18 mph, with gusts as high as 37 mph.

    High: 42 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow after 5am. Increasing clouds, with a low around 28. North wind 5 to 7 mph.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 44. Northwest wind 7 to 10 mph.

    High: 44 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 34.

    High: 34 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 20.

    Low: 20 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 32. Breezy, with a west wind 18 to 20 mph, with gusts as high as 38 mph.
Friday
Sunny, with a high near 42. West wind 10 to 18 mph, with gusts as high as 37 mph.
Friday Night
A 20 percent chance of snow after 5am. Increasing clouds, with a low around 28. North wind 5 to 7 mph.
Saturday
Mostly sunny, with a high near 44. Northwest wind 7 to 10 mph.
Saturday Night
Mostly clear, with a low around 25. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 37.
Sunday Night
Mostly clear, with a low around 18.
Monday
Sunny, with a high near 34.
Monday Night
Mostly clear, with a low around 20.
Tuesday
Partly sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Mostly cloudy, with a high near 59.
Wednesday Night
A 20 percent chance of rain. Partly cloudy, with a low around 36.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Greendale MO
 38.69°N 90.31°W (Elev. 594 ft)
Last Update:
12:26 am CST Feb 20, 2026
Forecast Valid:
2am CST Feb 20, 2026-6pm CST Feb 26, 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