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Chicago Lake Weather Forecast
| LATE THIS AFTERNOON | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
 |  |  |  | |  | | |  | | | |
| Sunny | Chance of Showers | Chance of Showers | Clearing | Clear | Clear | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 39°FLo: 4°C | Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C Lo: 37°FLo: 3°C | Hi: 69°FHi: 21°C Lo: 37°FLo: 3°C | Hi: 62°FHi: 17°C Lo: 34°FLo: 1°C | Hi: 62°FHi: 17°C Lo: 34°FLo: 1°C | Hi: 62°FHi: 17°C Lo: 37°FLo: 3°C | Hi: 62°FHi: 17°C Lo: 37°FLo: 3°C | Hi: 65°FHi: 18°C Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C Lo: 49°FLo: 9°C | |
| POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 223 PM EDT Mon Oct 05 2026 
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Meteorlogic Glosserator
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Issued: 823 PM EDT Mon Oct 5 2026
Key Messages
- Light rain showers possible across the area tonight through Tuesday. Minimal rainfall expected.
- Warmer on Tuesday with southerly gales to 35 knots expected over northern Lake Michigan and east central Lake Superior.
- Cooler temperatures return mid to late week with breezy northwest winds and additional chances for light lake effect rain showers, mainly in the east.
Discussion
... Issued at 305 PM EDT Mon Oct 5 2026
Water vapor imagery and RAP analysis reveal deep upper level troughing ce...