Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Overcast and Windy

42°F

6°C

Humidity 65%
Wind Speed NW 26 G 35 mph
Barometer 30.02 in (1016.4 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 9 Nov 3:53 am CST
Extended Forecast for

Caseyville IL

  • Today

    Today: A chance of sprinkles and flurries before 7am, then a chance of flurries.  Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 34 by 5pm. Breezy, with a northwest wind 20 to 23 mph, with gusts as high as 33 mph.

    High: 39 °F

    Breezy.
    Chance
    Sprinkles/Flurries
    then Chance
    Flurries

  • Tonight

    Tonight: A chance of flurries between midnight and 1am.  Partly cloudy, with a low around 25. Northwest wind 14 to 17 mph, with gusts as high as 26 mph.

    Low: 25 °F

    Chance
    Flurries

  • Monday

    Monday: Sunny, with a high near 41. Northwest wind 10 to 18 mph, with gusts as high as 28 mph.

    High: 41 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 25. Northwest wind 5 to 8 mph becoming south after midnight.

    Low: 25 °F

    Increasing
    Clouds

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 55. South wind 8 to 16 mph, with gusts as high as 26 mph.

    High: 55 °F

    Partly Sunny

  • Tuesday Night

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

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of sprinkles and flurries before 7am, then a chance of flurries. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 34 by 5pm. Breezy, with a northwest wind 20 to 23 mph, with gusts as high as 33 mph.
Tonight
A chance of flurries between midnight and 1am. Partly cloudy, with a low around 25. Northwest wind 14 to 17 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 41. Northwest wind 10 to 18 mph, with gusts as high as 28 mph.
Monday Night
Increasing clouds, with a low around 25. Northwest wind 5 to 8 mph becoming south after midnight.
Veterans Day
Partly sunny, with a high near 55. South wind 8 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Mostly sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Caseyville IL
 38.64°N 90.03°W (Elev. 446 ft)
3:16 am CST Nov 9, 2025
4am CST Nov 9, 2025-6pm CST Nov 15, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database