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

33°F

1°C

Humidity 38%
Wind Speed S 6 mph
Barometer 30.13 in (1020.5 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 21 Jan 1:53 am CST
Extended Forecast for

2 Miles SE Crystal City MO

  • Overnight

    Overnight: Mostly cloudy, with a low around 29. South wind around 9 mph, with gusts as high as 21 mph.

    Low: 29 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 45. West wind 7 to 9 mph, with gusts as high as 20 mph.

    High: 45 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 22. West wind 5 to 8 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 22 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 39. Light and variable wind.

    High: 39 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 12. Light northeast wind becoming north 5 to 10 mph after midnight.

    Low: 12 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 18.

    High: 18 °F

    Cold

  • Friday Night

    Friday Night: A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 2.

    Low: 2 °F

    Chance Snow

  • Saturday

    Saturday: A 50 percent chance of snow. Cloudy and cold, with a high near 14.

    High: 14 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 7.

    Low: 7 °F

    Chance Snow

Detailed Forecast

Overnight
Mostly cloudy, with a low around 29. South wind around 9 mph, with gusts as high as 21 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 45. West wind 7 to 9 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 22. West wind 5 to 8 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Thursday
Mostly sunny, with a high near 39. Light and variable wind.
Thursday Night
Mostly cloudy, with a low around 12. Light northeast wind becoming north 5 to 10 mph after midnight.
Friday
Mostly cloudy and cold, with a high near 18.
Friday Night
A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 2.
Saturday
A 50 percent chance of snow. Cloudy and cold, with a high near 14.
Saturday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 7.
Sunday
Partly sunny, with a high near 23.
Sunday Night
Partly cloudy, with a low around 5.
Monday
Mostly sunny, with a high near 27.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Mostly sunny, with a high near 38.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Crystal City MO
 38.2°N 90.36°W (Elev. 692 ft)
Last Update:
11:16 pm CST Jan 20, 2026
Forecast Valid:
2am CST Jan 21, 2026-6pm CST Jan 27, 2026
 
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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