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: A 20 percent chance of rain before 5pm. Cloudy, with a high near 43. East wind 6 to 8 mph.

    High: 43 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 4am. Low around 39. East wind 3 to 6 mph. Chance of precipitation is 90%.

    Low: 39 °F

    Cloudy then
    Rain

  • Tuesday

    Tuesday: Rain before noon, then a chance of rain and thunderstorms between noon and 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 62. Southeast wind around 6 mph. Chance of precipitation is 90%.

    High: 62 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, then rain and possibly a thunderstorm after 9pm. Low around 52. East wind 3 to 6 mph. Chance of precipitation is 80%.

    Low: 52 °F

    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm. High near 68. Light and variable wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 80%.

    High: 68 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain and possibly a thunderstorm. Low around 56. Chance of precipitation is 80%.

    Low: 56 °F

    Rain

  • Thursday

    Thursday: Rain and possibly a thunderstorm before noon, then a chance of rain and thunderstorms after noon. High near 72. Chance of precipitation is 80%.

    High: 72 °F

    Rain then
    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.

    Low: 56 °F

    Chance Rain
    then Chance
    T-storms

  • Friday

    Friday: A chance of rain and thunderstorms before noon, then a slight chance of rain. Partly sunny, with a high near 80. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    T-storms then
    Slight Chance
    Rain

Detailed Forecast

This Afternoon
A 20 percent chance of rain before 5pm. Cloudy, with a high near 43. East wind 6 to 8 mph.
Tonight
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 4am. Low around 39. East wind 3 to 6 mph. Chance of precipitation is 90%.
Tuesday
Rain before noon, then a chance of rain and thunderstorms between noon and 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 62. Southeast wind around 6 mph. Chance of precipitation is 90%.
Tuesday Night
Rain likely, then rain and possibly a thunderstorm after 9pm. Low around 52. East wind 3 to 6 mph. Chance of precipitation is 80%.
Wednesday
Rain and possibly a thunderstorm. High near 68. Light and variable wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 80%.
Wednesday Night
Rain and possibly a thunderstorm. Low around 56. Chance of precipitation is 80%.
Thursday
Rain and possibly a thunderstorm before noon, then a chance of rain and thunderstorms after noon. High near 72. Chance of precipitation is 80%.
Thursday Night
A chance of rain, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.
Friday
A chance of rain and thunderstorms before noon, then a slight chance of rain. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Friday Night
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 60. Chance of precipitation is 70%.
Saturday
Rain and thunderstorms likely. Cloudy, with a high near 70. Chance of precipitation is 70%.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 49.
Sunday
A 20 percent chance of rain. Mostly cloudy, with a high near 65.
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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:
12:26 pm CST Mar 2, 2026
Forecast Valid:
1pm CST Mar 2, 2026-6pm CDT Mar 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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