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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 | Patchy Fog | 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: 65°FHi: 18°C | Lo: 39°FLo: 4°C | Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°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: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 347 AM CST Sun Nov 08 2026 
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Issued: 509 AM CST Sun Nov 8 2026
Key Messages
- Widespread frost/freeze overnight tonight is expected to end the growing season. Patchy fog is also possible near bodies of water.
- Above normal temperatures are expected Monday through Wednesday with highs reaching the upper 60s to near 70 degrees. The warming trend may also lead to more widespread patchy fog Monday morning.
- Rain showers have increased to a 30-50% chance Wednesday afternoon into Wednesday evening as a cold blast filters into the region. Sprinkles linger into Thursday...