Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Partly Cloudy and Breezy

38°F

3°C

Humidity 76%
Wind Speed NW 23 G 31 mph
Barometer 29.85 in (1010.8 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 14 Jan 7:53 am CST
Extended Forecast for

Mehlville MO

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 31 by 5pm. Northwest wind 16 to 18 mph, with gusts as high as 36 mph.

    High: 40 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Clear, with a low around 18. Northwest wind 7 to 15 mph, with gusts as high as 28 mph.

    Low: 18 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 35. Northwest wind around 6 mph becoming south in the afternoon.

    High: 35 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight.  Mostly cloudy, with a low around 28. South wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 28 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 45. West wind 10 to 14 mph, with gusts as high as 28 mph.

    High: 45 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 10.

    Low: 10 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 31 by 5pm. Northwest wind 16 to 18 mph, with gusts as high as 36 mph.
Tonight
Clear, with a low around 18. Northwest wind 7 to 15 mph, with gusts as high as 28 mph.
Thursday
Sunny, with a high near 35. Northwest wind around 6 mph becoming south in the afternoon.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 28. South wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Friday
Partly sunny, with a high near 45. West wind 10 to 14 mph, with gusts as high as 28 mph.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
Partly sunny, with a high near 28.
Saturday Night
Partly cloudy, with a low around 10.
Sunday
Mostly sunny, with a high near 26.
Sunday Night
Partly cloudy, with a low around 16.
M.L.King Day
Mostly sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 14.
Tuesday
Sunny, with a high near 36.
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ABOUT THIS FORECAST

 
Point Forecast:
Mehlville MO
 38.51°N 90.32°W (Elev. 548 ft)
8:26 am CST Jan 14, 2026
8am CST Jan 14, 2026-6pm CST Jan 20, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database