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Winter Harbor Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  |  |  |  |  |  | | | | |
| Patchy Fog | Rain | Clearing | Clear | Sunny | Partly Cloudy | Chance of Showers | Chance of Showers | Mostly Sunny | Partly Cloudy | Mostly Sunny | Clear |
| Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C |
| POP: 100% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 400 AM EDT Thu Sep 17 2026 
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Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 537 AM EDT Thu Sep 17 2026
Key Messages
1) Rain likely Thursday night, mainly Downeast. Little to no drought improvement anticipated.
2) Gusty winds from the northwest during the day Friday could lead to isolated power outages.
3) Another chance for rain showers late this weekend.
Discussion
... KEY MESSAGE 1...Rain likely Thursday night, mainly Downeast. Little to no drought improvement anticipated.
KEY MESSAGE 1 DESCRIPTION... Rain Thursday night Downeast will be coming ahead of an approaching cold front and approaching upper...