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Boyd Lake Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  | | |  |  | | | | | |  |
| Clear | Sunny | Clear | Mostly Sunny | Chance of Showers | Partly Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Chance of Showers | Chance of Showers |
| Lo: 55°FLo: 13°C | Hi: 89°FHi: 32°C | Lo: 60°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Hi: 89°FHi: 32°C Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C Lo: 65°FLo: 18°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C |
| POP: 40% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 437 PM CDT Thu Oct 08 2026 
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Issued: 237 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. ...