National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

87°F

31°C

Humidity 34%
Wind Speed SW 8 mph
Barometer 29.71 in (1005.6 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 26 Mar 7:53 pm CDT
Extended Forecast for

2 Miles SE Cahokia IL

  • Tonight

    Tonight: Showers and thunderstorms. Low around 41. Breezy, with a southwest wind 10 to 15 mph becoming north 16 to 21 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%.

    Low: 41 °F

    Chance
    T-storms then
    Showers and
    Breezy

  • Friday

    Friday: Showers likely, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a high near 53. North wind 16 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 32. North wind 6 to 13 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57. Light and variable wind becoming southeast 5 to 7 mph in the morning.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41. South wind around 7 mph.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of rain after 1am. Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
Showers and thunderstorms. Low around 41. Breezy, with a southwest wind 10 to 15 mph becoming north 16 to 21 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 90%.
Friday
Showers likely, mainly before 9am. Cloudy through mid morning, then gradual clearing, with a high near 53. North wind 16 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Friday Night
Mostly clear, with a low around 32. North wind 6 to 13 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 57. Light and variable wind becoming southeast 5 to 7 mph in the morning.
Saturday Night
Partly cloudy, with a low around 41. South wind around 7 mph.
Sunday
Partly sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 85.
Monday Night
A 20 percent chance of rain after 1am. Partly cloudy, with a low around 65.
Tuesday
A 20 percent chance of rain and thunderstorms. Partly sunny, with a high near 87.
Tuesday Night
A 30 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 60.
Wednesday
A 40 percent chance of rain and thunderstorms. Partly sunny, with a high near 79.
Wednesday Night
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 58.
Thursday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Cahokia IL
 38.53°N 90.15°W (Elev. 499 ft)
Last Update:
7:51 pm CDT Mar 26, 2026
Forecast Valid:
8pm CDT Mar 26, 2026-6pm CDT Apr 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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