Kapes Lake, IL Weather Forecast
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Kapes Lake Weather Forecast
| REST OF TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
| Patchy Fog | Patchy Fog | Partly Cloudy | Mostly Cloudy | Chance of Showers | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Chance of T-Storm | Chance of Showers | Chance of Showers |
| Lo: 51°FLo: 11°C | Hi: 89°FHi: 32°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C Lo: 60°FLo: 16°C | Hi: 91°FHi: 33°C Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C |
| POP: 20% | POP: 20% | POP: 20% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 127 AM CDT Fri Oct 09 2026 

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Issued: 329 AM CDT Fri Oct 9 2026
Key Messages
- Near-record temperatures are forecast this afternoon and Monday.
- The remnants of Tropical Cyclone Isaias will bring slightly "cooler" temperatures over the weekend due to clouds, as well as chances of light rain in southeast Missouri and southwest Illinois on Saturday and Saturday night.
Aviation
/00Z TAFS THROUGH 06Z SATURDAY/... Issued at 1019 PM CDT Thu Oct 8 2026
Steam fog is expected to develop this morning, mostly in river valleys and in south-central Illinois. Decreased flight co...
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