Saturday was among the coolest days (relative to normal) this May in Southeastern New England. Lows were in the 40s, and the temperature struggled to reach the mid 60s with nothing but sunshine in the afternoon. It will be cool again Saturday night as the wind diminishes, but the theme for the next week or more is for warm and muggy weather in the Northeast.
The temperature will dip to 43-48° by dawn on Sunday. It will be mostly sunny on Sunday, with highs near 80 inland, and closer to 70 at the coast. There will be a gusty southwest wind during the afternoon. Some 30-35 mph gusts are possible, especially near the coast. 10-20 mph sustained winds are likely.
It will not be as cool Sunday night. Skies will be mainly clear with lows in the mid 50s. Memorial Day looks pretty nice. There will be a blend of clouds and sunshine, with highs in the upper 70s to low 80s inland, and low to mid 70s near the coast. The southwest breeze will not be quite as strong on Monday as it will be on Sunday.
The pattern stays warm and humid through next workweek. Lows will be near 60 on Tuesday morning. There may be some early clouds before hazy sunshine burns through during the morning. Highs will be well into the 80s inland. 90° is not out of the question if there is enough sunshine. It will be noticeably cooler near the coast, with highs in the 70s due to a southwest breeze.
Wednesday through Friday look about the same. Lows will be in the 60s, and highs will be in the 80s to low 90s inland, and 70s at the coast. There is an outside chance of an afternoon thunderstorm by Thursday or Friday afternoon.