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

34°F

1°C

Humidity 73%
Wind Speed SW 3 mph
Barometer 30.31 in (1026.6 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 12 Mar 5:53 am CDT
Extended Forecast for

2 Miles SE Cahokia IL

  • Today

    Today: Sunny, with a high near 56. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 56 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 44. Breezy, with a south wind 10 to 20 mph, with gusts as high as 36 mph.

    Low: 44 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 61. West wind 14 to 17 mph, with gusts as high as 29 mph.

    High: 61 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 37. Northwest wind 5 to 7 mph becoming east after midnight.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 64. Southeast wind 6 to 11 mph.

    High: 64 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain and possibly a thunderstorm. High near 68. Breezy. Chance of precipitation is 80%.

    High: 68 °F

    Rain and
    Breezy

  • Sunday Night

    Sunday Night: Rain likely, possibly mixed with snow before 1am, then a chance of snow. Some thunder is also possible. Mostly cloudy, with a low around 23. Breezy. Chance of precipitation is 60%.

    Low: 23 °F

    Rain/Snow
    Likely and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 34. Breezy.

    High: 34 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Today
Sunny, with a high near 56. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Tonight
Increasing clouds, with a low around 44. Breezy, with a south wind 10 to 20 mph, with gusts as high as 36 mph.
Friday
Partly sunny, with a high near 61. West wind 14 to 17 mph, with gusts as high as 29 mph.
Friday Night
Partly cloudy, with a low around 37. Northwest wind 5 to 7 mph becoming east after midnight.
Saturday
Partly sunny, with a high near 64. Southeast wind 6 to 11 mph.
Saturday Night
Mostly cloudy, with a low around 53.
Sunday
Rain and possibly a thunderstorm. High near 68. Breezy. Chance of precipitation is 80%.
Sunday Night
Rain likely, possibly mixed with snow before 1am, then a chance of snow. Some thunder is also possible. Mostly cloudy, with a low around 23. Breezy. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 34. Breezy.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Partly sunny, with a high near 40.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 59.
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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:
5:56 am CDT Mar 12, 2026
Forecast Valid:
6am CDT Mar 12, 2026-6pm CDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation