Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

43°F

6°C

Humidity 37%
Wind Speed S 8 mph
Barometer 29.92 in (1013.6 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 5 Dec 2:53 pm CST
Extended Forecast for

Crystal City MO

  • Tonight

    Tonight: Increasing clouds, with a low around 29. South wind around 6 mph becoming calm  after midnight.

    Low: 29 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 45. Light and variable wind.

    High: 45 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after midnight.  Mostly cloudy, with a low around 32. Light south wind.

    Low: 32 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: Mostly cloudy, with a high near 43. Calm wind becoming north 5 to 8 mph in the morning.

    High: 43 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 16. North wind 5 to 7 mph becoming calm  after midnight.

    Low: 16 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 29. South wind around 6 mph becoming calm after midnight.
Saturday
Partly sunny, with a high near 45. Light and variable wind.
Saturday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 32. Light south wind.
Sunday
Mostly cloudy, with a high near 43. Calm wind becoming north 5 to 8 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 16. North wind 5 to 7 mph becoming calm after midnight.
Monday
Mostly sunny, with a high near 36.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
A 20 percent chance of rain. Partly sunny, with a high near 50.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Mostly cloudy, with a high near 37.
Thursday Night
Mostly cloudy, with a low around 22.
Friday
Mostly sunny, with a high near 36.
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ABOUT THIS FORECAST

 
Point Forecast:
Crystal City MO
 38.22°N 90.39°W (Elev. 446 ft)
1:56 pm CST Dec 5, 2025
3pm CST Dec 5, 2025-6pm CST Dec 12, 2025
 
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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