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Sebago Lake Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
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| Chance of T-Storm | Partly Sunny | Partly Cloudy | Partly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Partly Sunny | Showers | Showers | Chance of Showers | Partly Sunny |
| Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 80°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C |
| POP: 50% | POP: 60% | POP: 60% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 500 PM EDT Sun Aug 23 2026 
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Sebago Lake Forecast Discussion
Issued: 224 PM EDT Sun Aug 23 2026
Key Messages
1. An expansive upper low will lead to some scattered showers and thunderstorms this afternoon/evening with more isolated activity expected on Monday.
2. The next chance of widespread rain comes late in the week, bookended by periods of dry weather through midweek and over the weekend.
Discussion
... KEY MESSAGE 1 DESCRIPTION...
An expansive closed upper low is currently located over southwestern Ontario and will gradually meander up into central Quebec by Monday afternoon. This pattern ...