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

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

49°F

9°C

Humidity 83%
Wind Speed S 3 mph
Barometer 30.07 in (1018.3 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 14 Nov 2:53 am CST
Extended Forecast for

Mehlville MO

  • Today

    Today: Sunny, with a high near 77. Southwest wind 5 to 8 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 60. Southwest wind around 7 mph.

    Low: 60 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 78. Southwest wind 7 to 10 mph becoming west in the afternoon. Winds could gust as high as 21 mph.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 46. North wind around 6 mph.

    Low: 46 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 59. North wind 3 to 5 mph.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of rain after noon. Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny
    then Chance
    Rain

  • Monday Night

    Monday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 46. Chance of precipitation is 70%.

    Low: 46 °F

    Rain Likely

  • Tuesday

    Tuesday: A 20 percent chance of rain before noon. Partly sunny, with a high near 56.

    High: 56 °F

    Slight Chance
    Rain then
    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 77. Southwest wind 5 to 8 mph.
Tonight
Increasing clouds, with a low around 60. Southwest wind around 7 mph.
Saturday
Mostly sunny, with a high near 78. Southwest wind 7 to 10 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Saturday Night
Mostly clear, with a low around 46. North wind around 6 mph.
Sunday
Sunny, with a high near 59. North wind 3 to 5 mph.
Sunday Night
Mostly clear, with a low around 41.
Monday
A 30 percent chance of rain after noon. Mostly sunny, with a high near 57.
Monday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 46. Chance of precipitation is 70%.
Tuesday
A 20 percent chance of rain before noon. Partly sunny, with a high near 56.
Tuesday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 39.
Wednesday
A 30 percent chance of rain. Partly sunny, with a high near 53.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Thursday
Rain likely. Mostly cloudy, with a high near 57. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mehlville MO
 38.51°N 90.32°W (Elev. 548 ft)
Last Update:
3:16 am CST Nov 14, 2025
Forecast Valid:
4am CST Nov 14, 2025-6pm CST Nov 20, 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