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

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Overcast

68°F

20°C

Humidity 96%
Wind Speed N 5 mph
Barometer 29.94 in (1013.6 mb)
Dewpoint 67°F (19°C)
Visibility 9.00 mi
Last update 24 Sep 6:53 am CDT
Extended Forecast for

Mehlville MO

  • Today

    Today: A slight chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 76. North wind 6 to 8 mph. Chance of precipitation is 60%.

    High: 76 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Showers
    Likely

  • Tonight

    Tonight: Showers likely, mainly before 1am. Cloudy during the early evening, then gradual clearing, with a low around 60. North wind around 6 mph. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 78. North wind 5 to 9 mph, with gusts as high as 21 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. North wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80. Calm wind.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 76. North wind 6 to 8 mph. Chance of precipitation is 60%.
Tonight
Showers likely, mainly before 1am. Cloudy during the early evening, then gradual clearing, with a low around 60. North wind around 6 mph. Chance of precipitation is 60%.
Thursday
Sunny, with a high near 78. North wind 5 to 9 mph, with gusts as high as 21 mph.
Thursday Night
Mostly clear, with a low around 57. North wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 80. Calm wind.
Friday Night
Clear, with a low around 56.
Saturday
Sunny, with a high near 83.
Saturday Night
Clear, with a low around 58.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 61.
Monday
Sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 62.
Tuesday
Mostly sunny, with a high near 85.
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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:
5:46 am CDT Sep 24, 2025
Forecast Valid:
8am CDT Sep 24, 2025-6pm CDT Sep 30, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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