Spinnaker Island Weather Forecast
- 64
- 80
Chance Rain Showers
- 60
- 72
Mostly Sunny
- 64
- 71
Partly Sunny
- 66
- 74
Chance Rain Showers
- 63
- 74
Partly Sunny
- 67
- 74
Partly Sunny
Today 10 Sep Eastern Plymouth
Partly sunny with scattered Showers in the Morning, then sunny in the afternoon. Humid with Highs in the mid 80s. Southwest Winds 15 to 20 Mph. Gusts up to 45 Mph, decreasing to 30 Mph in the afternoon. Chance of rain 50 percent.
Tonight 10 Sep Eastern Plymouth
Mostly cloudy with a 50 percent chance of Showers. Not as cool. Near steady temperature in the lower 70s. Southwest Winds 15 to 20 Mph with Gusts up to 45 Mph.
Spinnaker Island Temperature Statistics
September Temperature
Boston, Logan International Airport (6.8 miles)
Lowest 7 September, 2026
59 °FAverage September
69 °FHighest 4 September, 2026
85.6 °F
Climate (2021–2026)
Boston, Logan International Airport (6.8 miles)
Average Low 2021–2026
46.7 °FAverage 2021–2026
53.6 °FAverage High 2021–2026
61 °F