September is off to a hot start in Southeastern New England. It will turn briefly cooler Friday into the weekend before much warmer than normal weather returns for the end of the Labor Day weekend and next week. A couple of 90° days are possible in the middle of the week.
If you’re looking or an extended cool-down or fall preview in the next two weeks, I think you’re out of luck. The pattern will stay mostly warmer than normal through mid-September. We are in a mainly dry pattern for the past two weeks, and although there will be a shower threat in the mid to late workweek, and possibly some rain next weekend, most of the next two weeks look dry.
The tropics are quiet, aside from Tropical Storm Fred which way out to the Eastern Atlantic Ocean and not heading west. Looking ahead into fall, the period of Sep-Nov will most likely be warmer than normal in Southeastern New England. It will be buoyed by what is shaping up to be a very warm September. We do not expect October and November to be as warm – relative to normal. It will likely get wetter in October and November as the jet stream strengthens and El Niño begins to assert itself.