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

75°F

24°C

Humidity 84%
Wind Speed Calm
Barometer 30.00 in (1015.6 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 14 Oct 1:53 pm CDT
Extended Forecast for

Crystal City MO

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly before 5pm. Cloudy, with a high near 77. Light north wind.

    High: 77 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a low around 67. Calm wind. Chance of precipitation is 60%.

    Low: 67 °F

    Cloudy then
    Showers
    Likely

  • Thursday

    Thursday: Showers and thunderstorms, mainly before 1pm. High near 87. Calm wind becoming south 5 to 8 mph in the afternoon. Chance of precipitation is 80%.

    High: 87 °F

    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 47. West wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    Low: 47 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 58. Northwest wind 13 to 16 mph, with gusts as high as 30 mph.

    High: 58 °F

    Mostly Cloudy

  • Friday Night

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

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 35.

    Low: 35 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly before 5pm. Cloudy, with a high near 77. Light north wind.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a low around 67. Calm wind. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms, mainly before 1pm. High near 87. Calm wind becoming south 5 to 8 mph in the afternoon. Chance of precipitation is 80%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 47. West wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Friday
Mostly cloudy, with a high near 58. Northwest wind 13 to 16 mph, with gusts as high as 30 mph.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Sunny, with a high near 62.
Saturday Night
Clear, with a low around 35.
Sunday
Sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 38.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Crystal City MO
 38.22°N 90.39°W (Elev. 446 ft)
Last Update:
2:06 pm CDT Oct 14, 2026
Forecast Valid:
2pm CDT Oct 14, 2026-6pm CDT Oct 20, 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