National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Mostly Cloudy

28°F

-2°C

Humidity 56%
Wind Speed NW 20 G 29 mph
Barometer 30.15 in (1021.5 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 19 Jan 2:53 am CST
Extended Forecast for

Crystal City MO

  • Overnight

    Overnight: Mostly cloudy, with a low around 13. Northwest wind 6 to 15 mph, with gusts as high as 24 mph.

    Low: 13 °F

    Mostly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 23. Northwest wind 12 to 17 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 23 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 13. Light and variable wind becoming south around 5 mph after midnight.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 41. Calm wind becoming southwest around 6 mph in the morning.

    High: 41 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 28. South wind 6 to 8 mph, with gusts as high as 22 mph.

    Low: 28 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 13. Northwest wind 6 to 15 mph, with gusts as high as 24 mph.
M.L.King Day
Sunny, with a high near 23. Northwest wind 12 to 17 mph decreasing to 6 to 11 mph in the afternoon. Winds could gust as high as 26 mph.
Monday Night
Mostly clear, with a low around 13. Light and variable wind becoming south around 5 mph after midnight.
Tuesday
Mostly sunny, with a high near 41. Calm wind becoming southwest around 6 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 28. South wind 6 to 8 mph, with gusts as high as 22 mph.
Wednesday
Sunny, with a high near 48.
Wednesday Night
Mostly clear, with a low around 23.
Thursday
Sunny, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 20.
Friday
Mostly cloudy, with a high near 30.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 3.
Saturday
A 20 percent chance of snow. Mostly cloudy and cold, with a high near 17.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 6.
Sunday
Mostly sunny, with a high near 28.
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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:
3:25 am CST Jan 19, 2026
Forecast Valid:
3am CST Jan 19, 2026-6pm CST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation