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.

Overcast

24°F

-4°C

Humidity 71%
Wind Speed Calm
Barometer 30.27 in (1025.4 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 29 Jan 12:53 am CST
Extended Forecast for

3 Miles WSW Millstadt IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 13. Calm wind becoming northeast around 6 mph.

    Low: 13 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 5pm. Mostly cloudy, with a high near 24. Northeast wind around 7 mph.

    High: 24 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: Snow likely, mainly before 8pm. Mostly cloudy, with a low around 7. North wind around 7 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 7 °F

    Snow Likely
    then Slight
    Chance Snow

  • Friday

    Friday: Mostly sunny and cold, with a high near 18. North wind 6 to 10 mph.

    High: 18 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 4. North wind around 10 mph, with gusts as high as 20 mph.

    Low: 4 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 18.

    High: 18 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 1.

    Low: 1 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 18.

    Low: 18 °F

    Slight Chance
    Snow then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 13. Calm wind becoming northeast around 6 mph.
Thursday
A 20 percent chance of snow after 5pm. Mostly cloudy, with a high near 24. Northeast wind around 7 mph.
Thursday Night
Snow likely, mainly before 8pm. Mostly cloudy, with a low around 7. North wind around 7 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday
Mostly sunny and cold, with a high near 18. North wind 6 to 10 mph.
Friday Night
Mostly cloudy, with a low around 4. North wind around 10 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny and cold, with a high near 18.
Saturday Night
Mostly clear, with a low around 1.
Sunday
Partly sunny, with a high near 28.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 18.
Monday
Partly sunny, with a high near 34.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
Mostly cloudy, with a high near 36.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of snow. Mostly cloudy, with a high near 35.
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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:
1:51 am CST Jan 29, 2026
Forecast Valid:
1am CST Jan 29, 2026-6pm CST Feb 4, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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