New England August 6, 2021 6:01 pm Summer Weekend Ahead, With Thunder Sunday PM Friday night: lows in the upper to mid 60s, getting partly cloudy. Saturday: starting cloudy with temps projected to reach upper 80s, spots with 90 degree heat index US & World Videos 3:01 Weather: Sunny start to weekend 2:38 Weather forecast: Clear, cool Friday night 2:50 Weekend forecast: It's going to be rather splendid in Boston 3:23 Weather forecast: Warm and mostly dry this weekend 2:45 Chilly in Boston Friday, but there's plenty of sunshine