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.

Mostly Cloudy

45°F

7°C

Humidity 61%
Wind Speed E 3 mph
Barometer 29.93 in (1014.1 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 6 Dec 12:51 pm CST
Extended Forecast for

Saint Louis MO

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 44. Southeast wind 3 to 6 mph.

    High: 44 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 35. Southeast wind 3 to 6 mph.

    Low: 35 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of drizzle before 4pm. Mostly cloudy, with a temperature rising to near 38 by 10am, then falling to around 32 during the remainder of the day. Light and variable wind becoming north 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 38 °F⇓

    Slight Chance
    Drizzle

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 20. North wind 5 to 10 mph.

    Low: 20 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 33. North wind around 5 mph becoming calm in the morning.

    High: 33 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 44. Southeast wind 3 to 6 mph.
Tonight
Mostly cloudy, with a low around 35. Southeast wind 3 to 6 mph.
Sunday
A slight chance of drizzle before 4pm. Mostly cloudy, with a temperature rising to near 38 by 10am, then falling to around 32 during the remainder of the day. Light and variable wind becoming north 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
Mostly cloudy, with a low around 20. North wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 33. North wind around 5 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 45.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
A slight chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 23.
Friday
Mostly sunny, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.26°W (Elev. 499 ft)
Last Update:
12:36 pm CST Dec 6, 2025
Forecast Valid:
1pm CST Dec 6, 2025-6pm CST Dec 12, 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