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Sumner School Weather Forecast
| THIS AFTERNOON | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY |
 | |  |  |  | | | |  |  | |
| Chance of Rain | Rain | Mostly Sunny | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 59°FHi: 15°C | Lo: 59°FLo: 15°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 60°FHi: 16°C | Hi: 61°FHi: 16°C Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C Lo: 49°FLo: 9°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C Lo: 49°FLo: 9°C |
| POP: 100% | POP: 100% | POP: 40% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1002 AM EDT Sun Sep 20 2026 
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Issued: 738 AM EDT Sun Sep 20 2026
Key Messages
- Rain arrives from west to east through the morning continuing overnight.Rain exits most areas Monday morning with the exception of a few lingering showers near the Cape and Islands.
- High pressure will yield mainly dry conditions and cool temperatures the first half of the week. Potential for an offshore coastal low late week. There is still uncertainty in the track and strength at this time.
Discussion
... KEY MESSAGE 1...Rain arrives from west to east through the morning continuing ov...