‹ Massachusetts weather by month
Massachusetts weather in August
The state broadly agrees with itself in August: afternoons run 80° in Boston and 80° in Cape Cod, with everywhere else in between.
Based on 2 weather stations. Two stations — Boston and the Cape, where the ocean softens winter and holds spring back; the Berkshires out west run colder than both.
Boston
Highs near 80°, nights around 65°, and 3.2 in of rain in a typical August.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Boston | 80° / 65° | 5 | Quiet, settled, and the calmest stretch of the summer. |
Cape Cod
Highs near 80°, nights around 63°, and 3.3 in of rain in a typical August.
| Place | Highs / lows | Wet days | The short version |
|---|---|---|---|
| Cape Cod | 80° / 63° | 6 | The ocean is at its friendliest and everyone knows it. |
Each place above has its own page for the full story — what the month feels like, what to pack, and whether the timing is right.