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 78%
Wind Speed N 8 mph
Barometer 30.31 in (1027.7 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 8 Dec 1:51 am CST
Extended Forecast for

Saint Louis MO

  • Overnight

    Overnight: Cloudy, with a low around 23. North wind 7 to 9 mph.

    Low: 23 °F

    Cloudy

  • Monday

    Monday: Cloudy through mid morning, then gradual clearing, with a high near 34. North wind around 6 mph becoming calm in the afternoon.

    High: 34 °F

    Gradual
    Clearing

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28. Light and variable wind becoming south 5 to 9 mph in the evening.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 52. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 52 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday

    Thursday: A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 36.

    High: 36 °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 23. North wind 7 to 9 mph.
Monday
Cloudy through mid morning, then gradual clearing, with a high near 34. North wind around 6 mph becoming calm in the afternoon.
Monday Night
Partly cloudy, with a low around 28. Light and variable wind becoming south 5 to 9 mph in the evening.
Tuesday
Mostly sunny, with a high near 52. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 41. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Wednesday
Partly sunny, with a high near 47.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 29.
Thursday
A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 36.
Thursday Night
Mostly cloudy, with a low around 20.
Friday
Partly sunny, with a high near 27.
Friday Night
Mostly cloudy, with a low around 8.
Saturday
Partly sunny, with a high near 21.
Saturday Night
Mostly cloudy, with a low around 11.
Sunday
Mostly sunny, with a high near 26.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
Last Update:
10:11 pm CST Dec 7, 2025
Forecast Valid:
1am CST Dec 8, 2025-6pm CST Dec 14, 2025
 
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