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Lake Forest Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  | | | |  |  |  |  | | | |
| Partly Sunny | Partly Cloudy | Mostly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Sunny | Chance of Showers | Rain Showers | Partly Cloudy | Rain Showers | Chance of Showers |
| Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 60°FHi: 16°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 50°FLo: 10°C |
| POP: 20% | POP: 30% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 702 AM EDT Sun Oct 25 2026 
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Issued: 203 PM EDT Sun Oct 25 2026
Key Messages
- Cooler To Start The Week
- Warming Into Midweek With Showers Possible
- Widespread Rain Returns This Weekend
Discussion
... Issued at 202 PM EDT Sun Oct 25 2026- Cooler To Start The Week
Mid-level water vapor imagery continues to show ridging across the central Great Lakes region today which is keeping fair conditions across the region. Surface observations upstream show a cold front forecast to drift across the region overnight. Frontal passage is favored to be dry, with just clouds across ...