Winthrop Beach Weather Forecast
- 59
- 75
Mostly Sunny
- 65
- 77
Chance Rain Showers
- 70
- 82
Chance Rain Showers
- 63
- 84
Rain Showers Likely
- 58
- 71
Chance Rain Showers
- 55
- 70
Partly Sunny
- 55
- 68
Partly Sunny
Today 3 Sep Suffolk
Sunny. Near steady temperature in the mid 70s. Southeast Winds 5 to 10 Mph.
Tonight 3 Sep Suffolk
Mostly clear. Lows in the upper 50s. South Winds 5 to 10 Mph. Gusts up to 20 Mph this evening.
Winthrop Beach Temperature Statistics
September Temperature
Boston, Logan International Airport (1.9 miles)
Lowest 1 September, 2025
61 °FAverage September
65.9 °FHighest 1 September, 2025
72 °F
Climate (2020–Present)
Boston, Logan International Airport (1.9 miles)
Average Low 2020–2025
46.9 °FAverage 2020–2025
53.8 °FAverage High 2020–2025
61.1 °F