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Harpswell Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  |  | | | |  | | | | |
| Sunny | Partly Cloudy | Mostly Cloudy | Chance of Rain | Chance of Rain | Rain | Rain | Showers | Showers | Showers | Partly Sunny | Partly Cloudy |
| Hi: 65°FHi: 18°C | Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 60°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C |
| POP: 50% | POP: 70% | POP: 80% | POP: 80% | POP: 80% | POP: 80% | POP: 60% |
POP = Probability of Precipitation.
Weather Outlook Updated: 524 AM EDT Thu Sep 24 2026 
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Issued: 612 AM EDT Thu Sep 24 2026
Key Messages
1. High pressure remains in control of the weather pattern into Friday.
2. A strong coastal storm will track near southern New England to end the week. Soaking rain, gusty winds, high surf, and coastal flooding are possible through the weekend.
Discussion
... KEY MESSAGE 1 DESCRIPTION...
We will remain under the influence of cool high pressure at the surface through at least early on Friday. The airmass overhead is very dry as sampled by the 00z GYX upper air sounding. The sampled PWATs ...