Another epic day has unfolded for New England with sunshine and a busy westerly wind is holding off any sea breeze from forming. With high temperatures around 70, this is about as pleasant of a day as we find in New England.
Well to our west, a series of disturbances are traversing the leading edge to deeper warmth and humidity, and this new air colliding with our existing dry air will eventually spell increasing clouds and showers.
In fact, the first showers will develop in the Green Mountains of Vermont shortly after supper time Tuesday evening. Then, it will expand east and southeast during the overnight, bringing scattered showers to most of the six-state region from midnight onward. The exceptions are perhaps Southern Connecticut, Rhode Island and Cape Cod.
Wednesday dawns with light rain and fog in Northern New England. Clouds and patchy fog with a few showers may develop farther south as a surface warm front. This is marked by a shifting wind and increase in both temperature as humidity draws near. By late Wednesday afternoon, there is question as to the exact placement of the warm front.
Our First Alert Weather Team believes it should be somewhere near or north of the Massachusetts Turnpike, meaning temperatures will climb through the 70s and near 80 near and south of the Pike. The disturbance will have trouble breaking much beyond the 60s to near 70 from Northern Massachusetts points north, at least until Wednesday evening.
Thursday looks humid with heaviest rain and thunder in the morning, then drier air starts returning to New England. This will limit -- but not totally eliminate -- the chance of a returning scattered storm Thursday afternoon.
New air will be completely in place for the weekend, delivering incredibly pleasant air much like we started the work-week with.
However, we'll likely look forward to a warmer Sunday, at least away from the coast.