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Mcmann Lake Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | FRIDAY |
 |  | | | | | | | | | |
| Clear | Sunny | Clear | Sunny | Clear | Clear | Clear | Mostly Clear | Mostly Clear | Mostly Clear | Sunny |
| Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C Lo: 45°FLo: 7°C | Hi: 80°FHi: 27°C Lo: 51°FLo: 11°C | Hi: 80°FHi: 27°C Lo: 51°FLo: 11°C | Hi: 80°FHi: 27°C Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 637 PM CDT Fri Oct 02 2026 
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Issued: 556 PM CDT Fri Oct 2 2026
Key Messages
- A benign fall pattern will bring dry conditions, light winds, and pleasant temperatures this weekend and much of next week.
Discussion
... Issued at 141 PM CDT Fri Oct 2 2026
High pressure will build into the Great Lakes region tonight into Saturday, providing subsidence and cooler northeasterly flow for central IL to provide for mostly clear skies and seasonably cool temperatures. Lows tonight look to reach the mid 40s near and north of I-72 to around 50 south of I-70. Highs Saturday s...