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.

Overcast

71°F

22°C

Humidity 66%
Wind Speed E 10 mph
Barometer 29.89 in (1010.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 21 Jun 6:51 am CDT
Extended Forecast for

Maplewood MO

Flood Watch until June 22, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until June 22, 01:00am

    NOW until 1:00am Mon

    Flood Watch

  • Today

    High: 85 °F

    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 11pm. Low around 64. Southwest wind 7 to 9 mph becoming northwest after midnight. Chance of precipitation is 90%.

    Low: 64 °F

    T-storms then
    Chance
    T-storms

  • Monday

    Monday: Mostly cloudy, with a high near 78. North wind around 9 mph.

    High: 78 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62. North wind 5 to 7 mph becoming calm in the evening.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83. Light northeast wind.

    High: 83 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 85.

    High: 85 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 85. Light southeast wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 70%.
Tonight
Showers and thunderstorms, mainly before 11pm. Low around 64. Southwest wind 7 to 9 mph becoming northwest after midnight. Chance of precipitation is 90%.
Monday
Mostly cloudy, with a high near 78. North wind around 9 mph.
Monday Night
Partly cloudy, with a low around 62. North wind 5 to 7 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 83. Light northeast wind.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85.
Thursday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 65. Chance of precipitation is 20%.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Maplewood MO
 38.62°N 90.32°W (Elev. 499 ft)
Last Update:
6:56 am CDT Jun 21, 2026
Forecast Valid:
7am CDT Jun 21, 2026-6pm CDT Jun 27, 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