Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Partly Cloudy

30°F

-1°C

Humidity 72%
Wind Speed N 7 mph
Barometer 30.13 in (1020.7 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 21 Feb 4:53 am CST
Extended Forecast for

2 Miles SE Cahokia IL

  • Overnight

    Overnight: A chance of flurries.  Mostly cloudy, with a low around 27. North wind around 7 mph.

    Low: 27 °F

    Chance
    Flurries

  • Saturday

    Saturday: A slight chance of snow before 11am, then a chance of flurries between 11am and noon.  Mostly cloudy, with a high near 41. Northwest wind 7 to 11 mph.  Chance of precipitation is 20%.

    High: 41 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 22. Northwest wind 9 to 15 mph, with gusts as high as 25 mph.

    Low: 22 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 34. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 31 mph.

    High: 34 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 17. Northwest wind 14 to 16 mph, with gusts as high as 26 mph.

    Low: 17 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 34.

    High: 34 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 20.

    Low: 20 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of flurries. Mostly cloudy, with a low around 27. North wind around 7 mph.
Saturday
A slight chance of snow before 11am, then a chance of flurries between 11am and noon. Mostly cloudy, with a high near 41. Northwest wind 7 to 11 mph. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 22. Northwest wind 9 to 15 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 34. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 31 mph.
Sunday Night
Mostly clear, with a low around 17. Northwest wind 14 to 16 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 34.
Monday Night
Mostly clear, with a low around 20.
Tuesday
Partly sunny, with a high near 53.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 62.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 38.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 54.
Thursday Night
Mostly clear, with a low around 33.
Friday
Sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Cahokia IL
 38.53°N 90.15°W (Elev. 499 ft)
4:16 am CST Feb 21, 2026
5am CST Feb 21, 2026-6pm CST Feb 27, 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