Cahokia, Illinois Weather
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Weather Forecast for Cahokia, Illinois : St. Clair County
Issued: 11:52 am CDT Jun 2, 2025 Latitude: 38.5708849 Longitude: -90.1901113 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Mostly Sunny on This Afternoon Mostly Clear on Tonight 20% chance of thunderstorms on Tuesday 80% chance of thunderstorms on Wednesday 60% chance of thunderstorms on Thursday 50% chance of thunderstorms on Friday 40% chance of thunderstorms on Saturday 50% chance of thunderstorms on Sunday
High: 87°F Low: 67°F High: 91°F High: 83°F High: 84°F High: 85°F High: 83°F High: 83°F
Low: 72°F Low: 68°F Low: 68°F Low: 66°F Low: 66°F  
Mostly Sunny Mostly Clear Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms
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Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 87. South wind around 8 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 67. South wind 6 to 8 mph.
20% chance of thunderstorms Tuesday Tuesday... A slight chance of showers and thunderstorms between 1pm and 4pm. Partly sunny, with a high near 91. South wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
40% chance of thunderstorms Tuesday Night Tuesday Night... A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 72. South wind 6 to 11 mph, with gusts as high as 22 mph.
80% chance of thunderstorms Wednesday Wednesday... Showers and possibly a thunderstorm. High near 83. South wind 6 to 9 mph. Chance of precipitation is 80%.
60% chance of thunderstorms Wednesday Night Wednesday Night... Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
60% chance of thunderstorms Thursday Thursday... A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.
50% chance of thunderstorms Thursday Night Thursday Night... A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
50% chance of thunderstorms Friday Friday... A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
40% chance of thunderstorms Friday Night Friday Night... A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
40% chance of thunderstorms Saturday Saturday... A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
40% chance of thunderstorms Saturday Night Saturday Night... A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
50% chance of thunderstorms Sunday Sunday... A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
Sun Almanac for Cahokia, Illinois
Sunrise: 05:38 AM
Sunset: 8:20 PM
Civil Sunrise:05:06 AM
Civil Sunset: 8:51 PM
Nautical Sunrise: 04:27 AM
Nautical Sunset: 9:30 PM
Astro Sunrise: 03:43 AM
Astro Sunset: 10:15 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.