Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

48°F

9°C

Humidity 39%
Wind Speed N 3 mph
Barometer 30.30 in (1026.1 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 11 Feb 4:53 pm CST
Extended Forecast for

Cahokia IL

  • Tonight

    Tonight: Increasing clouds, with a low around 31. Calm wind.

    Low: 31 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 53. Calm wind becoming south around 6 mph in the afternoon.

    High: 53 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 32. Light southeast wind.

    Low: 32 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 59. Calm wind becoming south around 6 mph in the morning.

    High: 59 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 37. Light south wind.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 50 percent chance of rain.  Cloudy, with a high near 54.

    High: 54 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before midnight.  Mostly cloudy, with a low around 43. Chance of precipitation is 60%.

    Low: 43 °F

    Rain Likely

  • Sunday

    Sunday: A 30 percent chance of rain before noon.  Mostly sunny, with a high near 58.

    High: 58 °F

    Chance Rain
    then Mostly
    Sunny

  • Sunday Night

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

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 31. Calm wind.
Thursday
Mostly cloudy, with a high near 53. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 32. Light southeast wind.
Friday
Sunny, with a high near 59. Calm wind becoming south around 6 mph in the morning.
Friday Night
Mostly cloudy, with a low around 37. Light south wind.
Saturday
A 50 percent chance of rain. Cloudy, with a high near 54.
Saturday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Sunday
A 30 percent chance of rain before noon. Mostly sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 37.
Washington's Birthday
Mostly sunny, with a high near 62.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Mostly cloudy, with a high near 66.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
A 20 percent chance of rain. Mostly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
Cahokia IL
 38.57°N 90.18°W (Elev. 407 ft)
4:16 pm CST Feb 11, 2026
5pm CST Feb 11, 2026-6pm CST Feb 18, 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