Weather By Day

August Boston Weather 
August Boston Weather
Record High: 102°F
Normal High: 80°F
Normal Low: 64°F
Record Low: 46°F
Avg Monthly Rain: 3.37"
Rec 1 Day Rain: 7.06"

Boston Weather In August

Boston August Weather continues to be hot and humid, with occasional thunderstorms. Thankfully these storms are usually brief, and sometimes can bring some relief from the humidity. High temperatures are often above 80 and have been measured as high as 100°F.

As long as you check the weather report ahead of time you should be able to enjoy golf, running, and swimming most August days in Boston.