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.

Mostly Cloudy

80°F

27°C

Humidity 64%
Wind Speed NE 7 mph
Barometer 30.05 in (1016.6 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 15 Jun 10:51 am CDT
Extended Forecast for

Brentwood MO

  • Today

    Today: Partly sunny, with a high near 86. Northeast wind 3 to 6 mph.

    High: 86 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 70. Northeast wind around 6 mph becoming calm in the evening.

    Low: 70 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 86. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 86 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 70. Light southeast wind.

    Low: 70 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Calm wind becoming south 5 to 7 mph in the morning.

    High: 93 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 74.

    Low: 74 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 88. Chance of precipitation is 60%.

    High: 88 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 86. Northeast wind 3 to 6 mph.
Tonight
Mostly cloudy, with a low around 70. Northeast wind around 6 mph becoming calm in the evening.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 86. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 70. Light southeast wind.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Calm wind becoming south 5 to 7 mph in the morning.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 74.
Wednesday
Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 88. Chance of precipitation is 60%.
Wednesday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 69.
Juneteenth
Mostly sunny, with a high near 88.
Thursday Night
Mostly clear, with a low around 70.
Friday
Sunny, with a high near 92.
Friday Night
Mostly clear, with a low around 75.
Saturday
Sunny, with a high near 95.
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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:
11:07 am CDT Jun 15, 2025
Forecast Valid:
11am CDT Jun 15, 2025-6pm CDT Jun 21, 2025
 
Forecast Discussion
 
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Additional Resources

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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