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Dorchester Weather Forecast
| OVERNIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | SATURDAY | SUNDAY |
 |  |  | | | | | | | | |
| Chance of Showers | Sunny | Clear | Sunny | Clear | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 59°FHi: 15°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Hi: 70°FHi: 21°C Lo: 51°FLo: 11°C | Hi: 70°FHi: 21°C Lo: 51°FLo: 11°C | Hi: 70°FHi: 21°C Lo: 51°FLo: 11°C | Hi: 61°FHi: 16°C Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C Lo: 45°FLo: 7°C |
| POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1004 PM EDT Sun Oct 04 2026 
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Issued: 754 PM EDT Sun Oct 4 2026
Key Messages
- Scattered showers this afternoon into early morning Monday.
- A sharp temperature drop is then expected for the start of the week followed by a return to dry, fall-like conditions.
Discussion
... KEY MESSAGE 1...Scattered showers this afternoon into early morning Monday.
High pressure south of the Maritimes no longer had enough influence to prevent clouds and scattered showers from overspreading southern New England this afternoon. The trend of the latest guidance suite was slightly farth...