Great Brook Lake, ME Weather Forecast
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Great Brook Lake Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
| Mostly Cloudy | Chance of T-Storm | Chance of T-Storm | Sunny | Patchy Fog | Patchy Fog | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Chance of Showers |
| Lo: 60°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 70°FHi: 21°C |
| POP: 50% | POP: 20% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 400 PM EDT Thu Aug 27 2026 

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Issued: 159 PM EDT Thu Aug 27 2026
Key Messages
1) Isolated thunderstorms possible late this afternoon. Scattered showers regionwide tonight, with isolated thunderstorms possible.
2) Showers and thunderstorms on Friday, some of which may be strong with gusty winds and small hail.
3) System bringing rain showers and chance for thunder moves in Sunday afternoon.
Discussion
... KEY MESSAGE 1...Isolated thunderstorms possible late this afternoon. Scattered showers regionwide tonight, with isolated thunderstorms possible.
KEY MESSAGE 1 DESC...
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