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

38°F

3°C

Humidity 62%
Wind Speed Vrbl 3 mph
Barometer 30.23 in (1023.9 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 4 Jan 10:53 am CST
Extended Forecast for

Millstadt ILSimilar City Names

  • Today

    Today: Increasing clouds, with a high near 44. Southeast wind 5 to 8 mph.

    High: 44 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 31. South wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Gradual
    Clearing

  • Monday

    Monday: Sunny, with a high near 60. South wind around 7 mph.

    High: 60 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 45. South wind around 9 mph.

    Low: 45 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63. South wind 6 to 9 mph becoming west in the afternoon.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after midnight. Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: A 50 percent chance of rain. Mostly cloudy, with a high near 59.

    High: 59 °F

    Chance Rain

Detailed Forecast

Today
Increasing clouds, with a high near 44. Southeast wind 5 to 8 mph.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 31. South wind 6 to 9 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 60. South wind around 7 mph.
Monday Night
Increasing clouds, with a low around 45. South wind around 9 mph.
Tuesday
Mostly sunny, with a high near 63. South wind 6 to 9 mph becoming west in the afternoon.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
A 20 percent chance of rain after midnight. Partly cloudy, with a low around 46.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 59.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 45.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 55.
Friday Night
Mostly cloudy, with a low around 33.
Saturday
Mostly sunny, with a high near 46.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Millstadt ILSimilar City Names
 38.46°N 90.1°W (Elev. 604 ft)
Last Update:
11:12 am CST Jan 4, 2026
Forecast Valid:
11am CST Jan 4, 2026-6pm CST Jan 10, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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