Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Mostly Cloudy

50°F

10°C

Humidity 44%
Wind Speed W 3 mph
Barometer 29.78 in (1008.6 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 25 Feb 10:53 am CST
Extended Forecast for

3 Miles WSW Millstadt IL

  • Today

    Today: Mostly cloudy, with a high near 52. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 52 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 50 percent chance of rain, mainly before 3am.  Mostly cloudy, with a low around 35. East wind around 6 mph.

    Low: 35 °F

    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 55. East wind around 6 mph becoming calm  in the afternoon.

    High: 55 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35. Calm wind becoming southwest around 6 mph after midnight.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 67. Southwest wind 5 to 10 mph.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain.  Partly cloudy, with a low around 33.

    Low: 33 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A chance of rain before noon, then a chance of rain and snow.  Mostly cloudy, with a high near 46. Chance of precipitation is 40%.

    High: 46 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Today
Mostly cloudy, with a high near 52. Calm wind becoming northeast around 5 mph in the afternoon.
Tonight
A 50 percent chance of rain, mainly before 3am. Mostly cloudy, with a low around 35. East wind around 6 mph.
Thursday
Mostly sunny, with a high near 55. East wind around 6 mph becoming calm in the afternoon.
Thursday Night
Mostly clear, with a low around 35. Calm wind becoming southwest around 6 mph after midnight.
Friday
Sunny, with a high near 67. Southwest wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 64.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 33.
Sunday
A chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 46. Chance of precipitation is 40%.
Sunday Night
Rain likely before midnight, then a chance of rain and snow. Some thunder is also possible. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Monday
A 40 percent chance of rain. Mostly cloudy, with a high near 42.
Monday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 31.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Millstadt IL
 38.44°N 90.13°W (Elev. 650 ft)
10:26 am CST Feb 25, 2026
11am CST Feb 25, 2026-6pm CST Mar 3, 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