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Winthrop Square, MA Weather Forecast
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Winthrop Square Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | FRIDAY NIGHT |
 |  |  |  |  | | | | |  |  |  |
| Partly Cloudy | Thunderstorms | Patchy Fog | Mostly Sunny | Clear | Sunny | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy |
| Lo: 61°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 65°FLo: 18°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C Lo: 59°FLo: 15°C |
| POP: 80% |
POP = Probability of Precipitation.
Weather Outlook Updated: 703 PM EDT Sat Sep 12 2026 
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Issued: 646 PM EDT Sat Sep 12 2026
Key Messages
- Confidence continues for a period of torrential and a risk of flooding across much of Rhode Island and southeast Massachusetts.
- High pressure in control next week brings generally quiet weather. Brief bout of summer warmth and humidity expected Wed-Fri.
Discussion
... KEY MESSAGE 1...Confidence continues for a period of torrential and a risk of flooding across much of Rhode Island and southeast Massachusetts.
Main forecast focus for the next 48 hours continues to be on a shortwave and w...