The unofficial end to summer will bring conditions like that of midsummer, with sunny skies regionwide. With the wind no longer flowing onshore (now flowing from the west), summer conditions are primed to return. Today will be a perfect beach or cookout day.
Highs will range from the low to mid 80s in far northern Maine and far northern New Hampshire and the mountainous regions of Vermont, to the upper 80s across a large swath of central New Hampshire and not-as-far-north-but-still-northern New Hampshire, Vermont’s eastern and western borders, much of central and southeast Maine, the Berkshires of western Massachusetts, and areas near but not directly at south-coastal MA/RI/CT; lower 90s will prevail across most of Massachusetts, Rhode Island and Connecticut including much of the Boston metro; except the coast and the aforementioned regions. Highs may reach the mid 90s in the Connecticut Valley from Greenfield, MA to Hartford, CT, and the Merrimack Valley from the Concord, NH area to just east of Lawrence, MA.
Along the coast, between the low 80s in downeast Maine to the mid and upper 80s across southwest Maine, NH, and eastern MA coasts including much of Boston proper; back to the low 80s directly at south-coastal MA/RI/CT, except mid-80s in the NYC metro coast of southwest Connecticut. Cape Cod and the MA/RI Islands will stay in the 70s. Away from SE MA/RI/CT, areas just inland may be in the low 90s.
Generally sunny skies to prevail throughout much of the region. However, some clouds are possible across far northern New England associated with showers in southern Quebec, which may cross the International Border into mostly northern Maine but a shower cannot be ruled out across northern NH and northern VT,
Have a good Labor Day!