Tunnel Hill, IL Weather Forecast
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Tunnel Hill Weather Forecast
| TODAY | TONIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
| Sunny | Mostly Clear | Sunny | Clear | Sunny | Mostly Clear | Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of T-Storm | Partly Sunny | Partly Cloudy |
| Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 90°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Hi: 81°FHi: 27°C Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C Lo: 65°FLo: 18°C | Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C | Lo: 45°FLo: 7°C |
| POP: 50% | POP: 50% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 922 AM CDT Sun Oct 11 2026 

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Issued: 651 AM CDT Sun Oct 11 2026
Key Messages
- After some areas of early morning drizzle across the eastern portions of our area, clouds will be decreasing from west to east, with sunny conditions across the entire region by this afternoon.
- A quick return to well above normal temperatures can be expected today through Tuesday, with near record to record highs Monday and Tuesday.
- Chances of showers and some thunderstorms arrive late Tuesday night into Wednesday, with 40-70% chances by Wednesday afternoon, continuing into Thursday....
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