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

38°F

3°C

Humidity 70%
Wind Speed SW 15 G 25 mph
Barometer 29.94 in (1014.9 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 9 Dec 7:51 am CST
Extended Forecast for

Saint Louis MO

  • Today

    Today: Sunny, with a high near 53. Light south wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a steady temperature around 48. South wind 13 to 16 mph becoming west after midnight. Winds could gust as high as 33 mph.

    Low: 48 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Increasing clouds, with a temperature falling to around 37 by 4pm. Breezy, with a northwest wind 13 to 23 mph, with gusts as high as 38 mph.

    High: 46 °F⇓

    Increasing
    Clouds and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28. Northwest wind 5 to 9 mph becoming light after midnight.

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 41. Light and variable wind becoming southwest around 6 mph in the morning.

    High: 41 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Friday Night

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

    Low: 20 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 53. Light south wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Tonight
Mostly cloudy, with a steady temperature around 48. South wind 13 to 16 mph becoming west after midnight. Winds could gust as high as 33 mph.
Wednesday
Increasing clouds, with a temperature falling to around 37 by 4pm. Breezy, with a northwest wind 13 to 23 mph, with gusts as high as 38 mph.
Wednesday Night
Mostly cloudy, with a low around 28. Northwest wind 5 to 9 mph becoming light after midnight.
Thursday
Mostly cloudy, with a high near 41. Light and variable wind becoming southwest around 6 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 31.
Friday
Partly sunny, with a high near 43.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
Partly sunny, with a high near 29.
Saturday Night
Mostly cloudy, with a low around 11.
Sunday
Mostly sunny, with a high near 24.
Sunday Night
Partly cloudy, with a low around 15.
Monday
A chance of rain and snow. Partly sunny, with a high near 37. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.62°N 90.23°W (Elev. 489 ft)
Last Update:
7:52 am CST Dec 9, 2025
Forecast Valid:
7am CST Dec 9, 2025-6pm CST Dec 15, 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