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

42°F

6°C

Humidity 58%
Wind Speed S 5 mph
Barometer 30.08 in (1018.7 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 13 Feb 10:53 pm CST
Extended Forecast for

3 Miles WSW Millstadt IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. South wind around 6 mph becoming calm after midnight.

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: Rain, mainly after 10am. High near 50. Calm wind becoming east 5 to 8 mph in the morning. Chance of precipitation is 90%.

    High: 50 °F

    Rain

  • Saturday Night

    Saturday Night: Rain, mainly before 5am. Low around 44. Northeast wind around 9 mph. Chance of precipitation is 90%.

    Low: 44 °F

    Rain

  • Sunday

    Sunday: A 30 percent chance of rain before noon. Cloudy, then gradually becoming mostly sunny, with a high near 56. Northeast wind 6 to 10 mph.

    High: 56 °F

    Chance Rain
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. North wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 65.

    High: 65 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 39. South wind around 6 mph becoming calm after midnight.
Saturday
Rain, mainly after 10am. High near 50. Calm wind becoming east 5 to 8 mph in the morning. Chance of precipitation is 90%.
Saturday Night
Rain, mainly before 5am. Low around 44. Northeast wind around 9 mph. Chance of precipitation is 90%.
Sunday
A 30 percent chance of rain before noon. Cloudy, then gradually becoming mostly sunny, with a high near 56. Northeast wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 38. North wind around 5 mph becoming calm in the evening.
Washington's Birthday
Mostly sunny, with a high near 61.
Monday Night
Mostly cloudy, with a low around 44.
Tuesday
Mostly cloudy, with a high near 65.
Tuesday Night
Mostly cloudy, with a low around 55.
Wednesday
Partly sunny, with a high near 72.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 48.
Thursday
Partly sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 58.
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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:
8:37 pm CST Feb 13, 2026
Forecast Valid:
11pm CST Feb 13, 2026-6pm CST Feb 20, 2026
 
Forecast Discussion
 
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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