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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

2 Miles SE Cahokia IL

  • This Afternoon

    This Afternoon: Isolated showers and thunderstorms after 5pm. Cloudy, with a high near 53. East wind around 5 mph. Chance of precipitation is 20%.

    High: 53 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Patchy fog after 10pm. Otherwise, cloudy, with a low around 51. Northeast wind 3 to 6 mph. Chance of precipitation is 70%.

    Low: 51 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. Patchy fog before 10am. High near 64. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 90%.

    High: 64 °F

    Showers
    Likely and
    Patchy Fog
    then Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 55. South wind around 6 mph. Chance of precipitation is 100%.

    Low: 55 °F

    Showers

  • Thursday

    Thursday: Showers likely, mainly before noon. Mostly cloudy, with a high near 70. West wind 5 to 8 mph. Chance of precipitation is 70%.

    High: 70 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 79. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 59. Chance of precipitation is 90%.

    Low: 59 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers, mainly before noon. Partly sunny, with a high near 69.

    High: 69 °F

    Chance
    Showers then
    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms after 5pm. Cloudy, with a high near 53. East wind around 5 mph. Chance of precipitation is 20%.
Tonight
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Patchy fog after 10pm. Otherwise, cloudy, with a low around 51. Northeast wind 3 to 6 mph. Chance of precipitation is 70%.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. Patchy fog before 10am. High near 64. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 55. South wind around 6 mph. Chance of precipitation is 100%.
Thursday
Showers likely, mainly before noon. Mostly cloudy, with a high near 70. West wind 5 to 8 mph. Chance of precipitation is 70%.
Thursday Night
A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Friday
A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 59. Chance of precipitation is 90%.
Saturday
A 50 percent chance of showers, mainly before noon. Partly sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 48.
Monday
A 20 percent chance of showers. Sunny, with a high near 76.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 59.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Cahokia IL
 38.53°N 90.15°W (Elev. 499 ft)
Last Update:
2:26 pm CST Mar 3, 2026
Forecast Valid:
3pm CST Mar 3, 2026-6pm CDT Mar 10, 2026
 
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