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Mann Lake, IL Weather Forecast
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Mann Lake Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | VETERANS DAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY |
 |  | |  | | |  |  |  |  | | |
| Sunny | Patchy Fog | Sunny | Mostly Clear | Sunny | Mostly Clear | Chance of Showers | Chance of Showers | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear |
| Hi: 61°FHi: 16°C | Lo: 39°FLo: 4°C | Hi: 69°FHi: 21°C | Lo: 41°FLo: 5°C | Hi: 70°FHi: 21°C | Lo: 41°FLo: 5°C | Hi: 71°FHi: 22°C | Lo: 41°FLo: 5°C | Hi: 55°FHi: 13°C Lo: 31°FLo: -1°C | Hi: 55°FHi: 13°C Lo: 31°FLo: -1°C | Hi: 51°FHi: 11°C Lo: 30°FLo: -1°C | Hi: 51°FHi: 11°C Lo: 30°FLo: -1°C |
| POP: 40% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1102 AM CST Sun Nov 08 2026 
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Issued: 1037 AM CST Sun Nov 8 2026
Key Messages
- More widespread patchy fog is possible late tonight into Monday morning, especially near bodies of water.
- Temperatures will be 5 to 10 degrees above normal Monday through Wednesday, with highs ranging from the upper 60s to lower 70s.
- The risk of rain showers Wednesday afternoon into Wednesday evening has increased to a 40-60% chance as a cold blast sweeps across the region. Sprinkles will linger into Thursday with breezy and chilly conditions, followed by a 60-80% chance of highs str...