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

47°F

8°C

Humidity 86%
Wind Speed W 8 mph
Barometer 29.74 in (1007.1 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 14 Jan 1:53 am CST
Extended Forecast for

Crystal City MO

  • Overnight

    Overnight: A 20 percent chance of rain before 3am. Cloudy, with a steady temperature around 46. West wind 6 to 9 mph, with gusts as high as 23 mph.

    Low: 46 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A chance of sprinkles, mixing with flurries after 10am, then gradually ending. Cloudy, then gradual clearing during the afternoon, with a temperature falling to around 32 by 5pm. North wind 13 to 18 mph, with gusts as high as 29 mph.

    High: 41 °F⇓

    Chance
    Sprinkles/Flurries
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 16. Northwest wind 7 to 13 mph, with gusts as high as 24 mph.

    Low: 16 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 36. Northwest wind 5 to 7 mph becoming light and variable in the afternoon.

    High: 36 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 26. Light and variable wind becoming southwest 5 to 8 mph in the evening. Winds could gust as high as 20 mph.

    Low: 26 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of rain before 3am. Cloudy, with a steady temperature around 46. West wind 6 to 9 mph, with gusts as high as 23 mph.
Wednesday
A chance of sprinkles, mixing with flurries after 10am, then gradually ending. Cloudy, then gradual clearing during the afternoon, with a temperature falling to around 32 by 5pm. North wind 13 to 18 mph, with gusts as high as 29 mph.
Wednesday Night
Clear, with a low around 16. Northwest wind 7 to 13 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 36. Northwest wind 5 to 7 mph becoming light and variable in the afternoon.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 26. Light and variable wind becoming southwest 5 to 8 mph in the evening. Winds could gust as high as 20 mph.
Friday
Partly sunny, with a high near 46.
Friday Night
Mostly cloudy, with a low around 19.
Saturday
Partly sunny, with a high near 30.
Saturday Night
Partly cloudy, with a low around 11.
Sunday
Sunny, with a high near 35.
Sunday Night
Mostly clear, with a low around 18.
M.L.King Day
Sunny, with a high near 37.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crystal City MO
 38.22°N 90.39°W (Elev. 446 ft)
Last Update:
12:21 am CST Jan 14, 2026
Forecast Valid:
2am CST Jan 14, 2026-6pm CST Jan 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation