Chelsea Weather Forecast
- 62
- 78
Mostly Sunny
- 68
- 84
Mostly Sunny
- 74
- 91
Mostly Sunny
- 72
- 96
Slight Chance Thunderstorms
- 67
- 82
Chance Rain Showers
- 69
- 82
Chance Rain Showers
Today 22 Jul Suffolk
Sunny. Highs in the upper 70s. Northeast Winds 5 to 10 Mph.
Tonight 22 Jul Suffolk
Mostly clear. Lows in the lower 60s. Southeast Winds 5 to 10 Mph, becoming southwest after midnight.
Chelsea Temperature Statistics
July Temperature
Boston, Logan International Airport (1.9 miles)
Lowest 10 July, 2025
63.6 °FAverage July
76.5 °FHighest 16 July, 2025
95.6 °F
Climate (2020–Present)
Boston, Logan International Airport (1.9 miles)
Average Low 2020–2025
47 °FAverage 2020–2025
53.8 °FAverage High 2020–2025
61.1 °F