Weather WorldThree Rivers, MA Weather Forecast
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Three Rivers Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  |  |  | | |  |  | |  | | |
| Chance of Showers | Isolated Showers | Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy | Partly Sunny | Chance of Showers | Partly Cloudy | Partly Cloudy | Mostly Clear |
| Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 50°FLo: 10°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C Lo: 50°FLo: 10°C |
| POP: 40% | POP: 20% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 402 PM EDT Sat Sep 05 2026 
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Issued: 1132 AM EDT Sat Sep 5 2026
Key Messages
- A mainly dry day on tap except along and east of the I- 495 corridor where there is a chance for afternoon showers and perhaps a thunderstorm or two.
- Fall-like feel for Sunday, then more seasonable for Labor Day. A gradual warm-up throughout the week with continued dry weather through at least Wednesday or Thursday.
- Elevated risk for dangerous rip currents through the Holiday Weekend, especially Sunday into Labor Day.
Discussion
... KEY MESSAGE 1... A mainly dry day on tap except along...