Prospect, ME Weather Forecast
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Prospect Weather Forecast
| TONIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
| Isolated Showers | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Cloudy | Showers | Showers | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny |
| Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C |
| POP: 20% | POP: 90% | POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 500 PM EDT Sun Sep 06 2026 

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Issued: 322 PM EDT Sun Sep 6 2026
Key Messages
1. Isolated showers remain possible through this afternoon, with drier conditions expected Monday and Tuesday.
2. A seasonably strong low pressure will cross the St. Lawrence Valley Wednesday into Thursday. Thunderstorms will be possible ahead of the trailing cold front Wednesday, and gusty northwesterly winds will be possible behind it Thursday.
Discussion
... KEY MESSAGE 1 DESCRIPTION...
Low level moisture in proximity to the broad low pressure over Nova Scotia will continue to produce...
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