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

38°F

3°C

Humidity 86%
Wind Speed S 5 mph
Barometer 29.92 in (1013.6 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 7 Dec 3:51 am CST
Extended Forecast for

Lambert-St. Louis International Airport MO

  • Overnight

    Overnight: A chance of sprinkles after 5am. Mostly cloudy, with a low around 37. South wind around 6 mph.

    Low: 37 °F

    Chance
    Sprinkles

  • Sunday

    Sunday: A chance of sprinkles before 11am. Cloudy, with a temperature rising to near 39 by 9am, then falling to around 32 during the remainder of the day. South wind 5 to 13 mph becoming north in the afternoon. Winds could gust as high as 22 mph.

    High: 39 °F⇓

    Chance
    Sprinkles

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 22. North wind 7 to 13 mph, with gusts as high as 21 mph.

    Low: 22 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 32. North wind around 6 mph becoming calm.

    High: 32 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27. Southeast wind 6 to 11 mph becoming southwest after midnight.

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Overnight
A chance of sprinkles after 5am. Mostly cloudy, with a low around 37. South wind around 6 mph.
Sunday
A chance of sprinkles before 11am. Cloudy, with a temperature rising to near 39 by 9am, then falling to around 32 during the remainder of the day. South wind 5 to 13 mph becoming north in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Mostly cloudy, with a low around 22. North wind 7 to 13 mph, with gusts as high as 21 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 32. North wind around 6 mph becoming calm.
Monday Night
Partly cloudy, with a low around 27. Southeast wind 6 to 11 mph becoming southwest after midnight.
Tuesday
Mostly sunny, with a high near 53.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Partly sunny, with a high near 46.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 27.
Thursday
A chance of rain and snow, mainly before noon. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 17.
Friday
Mostly sunny, with a high near 24.
Friday Night
Mostly cloudy, with a low around 7.
Saturday
Partly sunny, with a high near 22.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lambert-St. Louis International Airport MO
 38.76°N 90.37°W (Elev. 551 ft)
Last Update:
3:16 am CST Dec 7, 2025
Forecast Valid:
4am CST Dec 7, 2025-6pm CST Dec 13, 2025
 
Forecast Discussion
 
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Additional Resources

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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