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.

Light Rain and Windy

55°F

13°C

Humidity 83%
Wind Speed W 31 G 49 mph
Barometer 29.35 in (993.4 mb)
Dewpoint 50°F (10°C)
Visibility 3.00 mi
Wind Chill49°F (9°C)
Last update 15 Mar 4:51 pm CDT
Extended Forecast for

Brentwood MO

Tornado Watch March 15, 05:01pm until March 15, 08:00pm
Wind Advisory March 15, 05:01pm until March 16, 12:00pm
Tornado Warning until March 15, 05:15pm
Severe T-storm Warning March 15, 05:01pm until March 15, 05:15pm
Click here for hazard details and duration
Tornado Watch
Wind Advisory
Tornado Warning
Severe T-storm Warning
  •  
    Tornado Watch March 15, 05:01pm until March 15, 08:00pm
    Wind Advisory March 15, 05:01pm until March 16, 12:00pm
    Tornado Warning until March 15, 05:15pm
    Severe T-storm Warning March 15, 05:01pm until March 15, 05:15pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 57 °F

    Severe
    Thunderstorms
    and Breezy

  • Tonight

    Tonight: Rain and snow before 11pm, then a chance of snow. Low around 22. Blustery, with a west wind 21 to 23 mph, with gusts as high as 48 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Rain/Snow and
    Breezy then
    Chance Snow
    and Blustery

  • Monday

    Monday: A slight chance of snow before 11am, then scattered flurries between 11am and 1pm. Cloudy, with a high near 29. Blustery, with a northwest wind 18 to 22 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.

    High: 29 °F

    Blustery.
    Slight Chance
    Snow then
    Scattered
    Flurries

  • Monday Night

    Monday Night: Partly cloudy, with a low around 15. Northwest wind 10 to 15 mph, with gusts as high as 26 mph.

    Low: 15 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 37. Northwest wind around 6 mph becoming south in the afternoon.

    High: 37 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow before 4am, then a chance of rain. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.

    Low: 31 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A 30 percent chance of rain before 7am. Mostly sunny, with a high near 63.

    High: 63 °F

    Chance Rain
    then Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. Some of the storms could be severe. Steady temperature around 57. Breezy, with a west wind around 23 mph, with gusts as high as 38 mph. Chance of precipitation is 90%.
Tonight
Rain and snow before 11pm, then a chance of snow. Low around 22. Blustery, with a west wind 21 to 23 mph, with gusts as high as 48 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
A slight chance of snow before 11am, then scattered flurries between 11am and 1pm. Cloudy, with a high near 29. Blustery, with a northwest wind 18 to 22 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 15. Northwest wind 10 to 15 mph, with gusts as high as 26 mph.
Tuesday
Mostly sunny, with a high near 37. Northwest wind around 6 mph becoming south in the afternoon.
Tuesday Night
A chance of snow before 4am, then a chance of rain. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of rain before 7am. Mostly sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 45.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Mostly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Brentwood MO
 38.62°N 90.35°W (Elev. 499 ft)
Last Update:
4:56 pm CDT Mar 15, 2026
Forecast Valid:
5pm CDT Mar 15, 2026-6pm CDT Mar 22, 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