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

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

85°F

29°C

Humidity 57%
Wind Speed NW 17 mph
Barometer 29.87 in (1011.0 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 23 Jun 10:53 am CDT
Extended Forecast for

Cahokia IL

  • Today

    Today: Sunny, with a high near 92. Northwest wind around 10 mph.

    High: 92 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 68. Northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 68 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 94. South wind 3 to 7 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 77. Southeast wind around 6 mph.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Southwest wind 6 to 9 mph.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 75. Chance of precipitation is 60%.

    Low: 75 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.

    High: 93 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 92. Northwest wind around 10 mph.
Tonight
Clear, with a low around 68. Northwest wind 5 to 8 mph becoming calm in the evening.
Monday
Sunny, with a high near 94. South wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 77. Southeast wind around 6 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Southwest wind 6 to 9 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 75. Chance of precipitation is 60%.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Wednesday Night
Mostly clear, with a low around 69.
Thursday
Sunny, with a high near 91.
Thursday Night
Partly cloudy, with a low around 70.
Friday
Mostly sunny and hot, with a high near 97.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 98.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Cahokia IL
 38.55°N 90.15°W (Elev. 407 ft)
Last Update:
8:37 am CDT Jun 23, 2024
Forecast Valid:
11am CDT Jun 23, 2024-6pm CDT Jun 29, 2024
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation