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

32°F

0°C

Humidity 82%
Wind Speed Calm
Barometer 29.91 in (1013.2 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 5 Jan 7:53 am CST
Extended Forecast for

Crystal City MO

  • Today

    Today: Sunny, with a high near 61. South wind 3 to 8 mph.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 47. South wind around 7 mph, with gusts as high as 21 mph.

    Low: 47 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 65. West wind 6 to 10 mph, with gusts as high as 22 mph.

    High: 65 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 36. Light west wind.

    Low: 36 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63. Calm wind becoming south around 6 mph in the afternoon.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain. High near 64. Chance of precipitation is 80%.

    High: 64 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm before midnight, then a chance of rain. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.

    Low: 51 °F

    Rain Likely

  • Friday

    Friday: A chance of rain and thunderstorms. Mostly sunny, with a high near 64. Chance of precipitation is 40%.

    High: 64 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 61. South wind 3 to 8 mph.
Tonight
Partly cloudy, with a low around 47. South wind around 7 mph, with gusts as high as 21 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 65. West wind 6 to 10 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 36. Light west wind.
Wednesday
Mostly sunny, with a high near 63. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 47.
Thursday
Rain. High near 64. Chance of precipitation is 80%.
Thursday Night
Rain likely and possibly a thunderstorm before midnight, then a chance of rain. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
Friday
A chance of rain and thunderstorms. Mostly sunny, with a high near 64. Chance of precipitation is 40%.
Friday Night
A 20 percent chance of rain before midnight. Partly cloudy, with a low around 35.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Mostly clear, with a low around 24.
Sunday
Sunny, with a high near 42.
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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:
4:46 am CST Jan 5, 2026
Forecast Valid:
8am CST Jan 5, 2026-6pm CST Jan 11, 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