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.

A Few Clouds

33°F

1°C

Humidity 66%
Wind Speed N 3 mph
Barometer 30.07 in (1018.5 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 21 Feb 12:53 am CST
Extended Forecast for

3 Miles WSW Millstadt IL

  • Overnight

    Overnight: A chance of flurries between 4am and 5am, then a slight chance of snow after 5am. Partly cloudy, with a low around 28. North wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: A chance of flurries with a slight chance of snow before 10am, then a chance of flurries between 10am and 11am. Partly sunny, with a high near 41. Northwest wind 6 to 10 mph. Chance of precipitation is 20%.

    High: 41 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 22. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.

    Low: 22 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 33. Breezy, with a northwest wind 17 to 21 mph, with gusts as high as 31 mph.

    High: 33 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 16. Northwest wind 15 to 17 mph, with gusts as high as 26 mph.

    Low: 16 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of flurries between 4am and 5am, then a slight chance of snow after 5am. Partly cloudy, with a low around 28. North wind 3 to 6 mph. Chance of precipitation is 20%.
Saturday
A chance of flurries with a slight chance of snow before 10am, then a chance of flurries between 10am and 11am. Partly sunny, with a high near 41. Northwest wind 6 to 10 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 22. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 33. Breezy, with a northwest wind 17 to 21 mph, with gusts as high as 31 mph.
Sunday Night
Mostly clear, with a low around 16. Northwest wind 15 to 17 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 19.
Tuesday
Partly sunny, with a high near 52.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Partly sunny, with a high near 61.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 38.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 52.
Thursday Night
Mostly clear, with a low around 32.
Friday
Sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Millstadt IL
 38.44°N 90.13°W (Elev. 650 ft)
Last Update:
12:26 am CST Feb 21, 2026
Forecast Valid:
1am CST Feb 21, 2026-6pm CST Feb 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation