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

41°F

5°C

Humidity 62%
Wind Speed N 17 G 26 mph
Barometer 30.26 in (1024.7 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 23 Mar 4:53 am CDT
Extended Forecast for

3 Miles WSW Millstadt IL

  • Today

    Today: Increasing clouds, with a high near 54. North wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 54 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A chance of sprinkles after 2am. Mostly cloudy, with a low around 36. East wind 6 to 8 mph.

    Low: 36 °F

    Chance
    Sprinkles

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61. Southeast wind 7 to 9 mph.

    High: 61 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40. Southeast wind around 6 mph.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. South wind 5 to 9 mph.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 43. Chance of precipitation is 60%.

    Low: 43 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A 40 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 51.

    High: 51 °F

    Chance
    Showers

Detailed Forecast

Today
Increasing clouds, with a high near 54. North wind 10 to 14 mph, with gusts as high as 23 mph.
Tonight
A chance of sprinkles after 2am. Mostly cloudy, with a low around 36. East wind 6 to 8 mph.
Tuesday
Mostly sunny, with a high near 61. Southeast wind 7 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 40. Southeast wind around 6 mph.
Wednesday
Mostly sunny, with a high near 74. South wind 5 to 9 mph.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 88.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 43. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 51.
Friday Night
Partly cloudy, with a low around 32.
Saturday
Sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 63.
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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:
3:41 am CDT Mar 23, 2026
Forecast Valid:
5am CDT Mar 23, 2026-6pm CDT Mar 29, 2026
 
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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