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.

Overcast

50°F

10°C

Humidity 46%
Wind Speed E 7 mph
Barometer 29.79 in (1009.2 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 25 Feb 5:51 pm CST
Extended Forecast for

Greendale MO

  • Tonight

    Tonight: A 50 percent chance of rain, mainly before 3am. Mostly cloudy, with a low around 36. Northeast wind around 6 mph.

    Low: 36 °F

    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 56. East wind around 5 mph becoming calm in the afternoon.

    High: 56 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 36. Calm wind becoming southwest around 5 mph after midnight.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 70. Southwest wind 5 to 10 mph.

    High: 70 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43. Southwest wind 5 to 7 mph becoming northeast after midnight.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of rain. Sunny, with a high near 63.

    High: 63 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain and snow, mainly after noon. Cloudy, with a high near 44. Chance of precipitation is 50%.

    High: 44 °F

    Slight Chance
    Rain/Snow
    then Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow likely, mainly before midnight. Cloudy, with a low around 29. Chance of precipitation is 70%.

    Low: 29 °F

    Rain/Snow
    Likely

Detailed Forecast

Tonight
A 50 percent chance of rain, mainly before 3am. Mostly cloudy, with a low around 36. Northeast wind around 6 mph.
Thursday
Mostly sunny, with a high near 56. East wind around 5 mph becoming calm in the afternoon.
Thursday Night
Mostly clear, with a low around 36. Calm wind becoming southwest around 5 mph after midnight.
Friday
Sunny, with a high near 70. Southwest wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 43. Southwest wind 5 to 7 mph becoming northeast after midnight.
Saturday
A 20 percent chance of rain. Sunny, with a high near 63.
Saturday Night
Mostly cloudy, with a low around 32.
Sunday
A chance of rain and snow, mainly after noon. Cloudy, with a high near 44. Chance of precipitation is 50%.
Sunday Night
Rain and snow likely, mainly before midnight. Cloudy, with a low around 29. Chance of precipitation is 70%.
Monday
A chance of rain and snow before noon, then a slight chance of rain. Cloudy, with a high near 40. Chance of precipitation is 30%.
Monday Night
A 40 percent chance of rain. Cloudy, with a low around 28.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 45.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 33.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greendale MO
 38.69°N 90.31°W (Elev. 594 ft)
Last Update:
4:56 pm CST Feb 25, 2026
Forecast Valid:
6pm CST Feb 25, 2026-6pm CST Mar 4, 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