Kepler Lake, IL Weather Forecast
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Kepler Lake Weather Forecast
| REST OF TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
| Chance of T-Storm | Chance of T-Storm | Mostly Clear | Sunny | Mostly Cloudy | Mostly Sunny | Mostly Clear | Mostly Clear | Sunny | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Hi: 85°FHi: 29°C Lo: 59°FLo: 15°C | Hi: 85°FHi: 29°C Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Hi: 71°FHi: 22°C Lo: 55°FLo: 13°C |
| POP: 20% | POP: 80% | POP: 40% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1057 PM CDT Thu Oct 08 2026 

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Issued: 655 PM CDT Thu Oct 8 2026
Key Messages
- There is higher confidence in scattered rain showers and isolated thunderstorms Friday morning from I-74 north. Rainfall amounts should be light.
- Dry fuels and low relative humidity will continue to provide an elevated risk for afternoon agricultural field fires through Saturday, especially southeast of the IL river.
- The remnants of Isaias will approach southeastern Illinois Saturday night, bringing rain chances over east central and southeast Illinois Saturday night through Sunday. ...
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