National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

A Few Clouds

11°F

-12°C

Humidity 70%
Wind Speed SW 8 mph
Barometer 30.17 in (1023.8 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill-1°F (-18°C)
Last update 18 Jan 5:51 am CST
Extended Forecast for

Brentwood MO

  • Today

    Today: Increasing clouds, with a high near 32. Southwest wind 6 to 10 mph, with gusts as high as 22 mph.

    High: 32 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 10. Northwest wind 9 to 18 mph, with gusts as high as 32 mph.

    Low: 10 °F

    Gradual
    Clearing

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 22. Northwest wind 8 to 16 mph, with gusts as high as 29 mph.

    High: 22 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 13. West wind 5 to 7 mph becoming calm.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 39. South wind 5 to 8 mph.

    High: 39 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 32. Southwest wind 6 to 10 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 10. Northwest wind 9 to 18 mph, with gusts as high as 32 mph.
M.L.King Day
Sunny, with a high near 22. Northwest wind 8 to 16 mph, with gusts as high as 29 mph.
Monday Night
Mostly clear, with a low around 13. West wind 5 to 7 mph becoming calm.
Tuesday
Mostly sunny, with a high near 39. South wind 5 to 8 mph.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Mostly sunny, with a high near 45.
Wednesday Night
Partly cloudy, with a low around 23.
Thursday
Mostly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 28.
Friday
A 20 percent chance of rain. Mostly cloudy, with a high near 45.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.
Saturday
A 30 percent chance of snow. Partly sunny, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brentwood MO
 38.62°N 90.35°W (Elev. 499 ft)
Last Update:
5:06 am CST Jan 18, 2026
Forecast Valid:
6am CST Jan 18, 2026-6pm CST Jan 24, 2026
 
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