Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

58°F

14°C

Humidity 65%
Wind Speed S 7 mph
Barometer 30.04 in (1017.2 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 4 Nov 7:53 pm CST
Extended Forecast for

Caseyville IL

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 52. South wind 8 to 11 mph.

    Low: 52 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 70. Southwest wind 7 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 39. North wind 5 to 7 mph becoming light and variable  after midnight.

    Low: 39 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 64. Southeast wind 5 to 14 mph, with gusts as high as 21 mph.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after midnight.  Mostly cloudy, with a low around 54. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers before noon.  Mostly sunny, with a high near 71.

    High: 71 °F

    Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain before midnight.  Partly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain
    then Partly
    Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 52. South wind 8 to 11 mph.
Wednesday
Sunny, with a high near 70. Southwest wind 7 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
Clear, with a low around 39. North wind 5 to 7 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 64. Southeast wind 5 to 14 mph, with gusts as high as 21 mph.
Thursday Night
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 54. South wind around 10 mph, with gusts as high as 20 mph.
Friday
A 30 percent chance of showers before noon. Mostly sunny, with a high near 71.
Friday Night
Mostly clear, with a low around 44.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
A 30 percent chance of rain before midnight. Partly cloudy, with a low around 40.
Sunday
Partly sunny, with a high near 46.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Sunny, with a high near 44.
Monday Night
Mostly clear, with a low around 27.
Veterans Day
Mostly sunny, with a high near 54.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Caseyville IL
 38.64°N 90.03°W (Elev. 446 ft)
4:46 pm CST Nov 4, 2025
8pm CST Nov 4, 2025-6pm CST Nov 11, 2025
 
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