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

59°F

15°C

Humidity 75%
Wind Speed Calm
Barometer 30.09 in (1018.7 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 10 Oct 8:53 am CDT
Extended Forecast for

Crystal City MO

  • Today

    Today: Increasing clouds, with a high near 81. Calm wind becoming east around 5 mph in the afternoon.

    High: 81 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 52. East wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 90. Calm wind.

    High: 90 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. Light and variable wind.

    Low: 63 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 95. Southwest wind 5 to 9 mph.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 69.

    Low: 69 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 64.

    Low: 64 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 83. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely

Detailed Forecast

Today
Increasing clouds, with a high near 81. Calm wind becoming east around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 52. East wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 90. Calm wind.
Sunday Night
Mostly clear, with a low around 63. Light and variable wind.
Columbus Day
Sunny, with a high near 95. Southwest wind 5 to 9 mph.
Monday Night
Clear, with a low around 69.
Tuesday
Sunny, with a high near 93.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 64.
Wednesday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 83. Chance of precipitation is 60%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 81. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 53.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 72.
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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:
8:36 am CDT Oct 10, 2026
Forecast Valid:
9am CDT Oct 10, 2026-6pm CDT Oct 16, 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