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

25°F

-4°C

Humidity 81%
Wind Speed N 9 mph
Barometer 30.29 in (1026.9 mb)
Dewpoint 20°F (-7°C)
Visibility 9.00 mi
Wind Chill16°F (-9°C)
Last update 8 Dec 12:51 am CST
Extended Forecast for

Lambert-St. Louis International Airport MO

  • Overnight

    Overnight: Cloudy, with a low around 22. North wind 6 to 8 mph.

    Low: 22 °F

    Cloudy

  • Monday

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

    High: 32 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28. Southeast wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 51. Southwest wind 10 to 14 mph.

    High: 51 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40. South wind 14 to 16 mph becoming west after midnight. Winds could gust as high as 25 mph.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday

    Thursday: A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 35.

    High: 35 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 22. North wind 6 to 8 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 32. North wind around 6 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a low around 28. Southeast wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 51. Southwest wind 10 to 14 mph.
Tuesday Night
Mostly cloudy, with a low around 40. South wind 14 to 16 mph becoming west after midnight. Winds could gust as high as 25 mph.
Wednesday
Partly sunny, with a high near 45.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 26.
Thursday
A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 35.
Thursday Night
Mostly cloudy, with a low around 20.
Friday
Partly sunny, with a high near 26.
Friday Night
Mostly cloudy, with a low around 8.
Saturday
Partly sunny and cold, with a high near 20.
Saturday Night
Mostly cloudy, with a low around 9.
Sunday
Mostly sunny, with a high near 25.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lambert-St. Louis International Airport MO
 38.76°N 90.37°W (Elev. 551 ft)
Last Update:
10:11 pm CST Dec 7, 2025
Forecast Valid:
1am CST Dec 8, 2025-6pm CST Dec 14, 2025
 
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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