A late October / early November-like air mass has built into the Northeast and New England and will remain over the area through the day today and into tonight.
Temperatures are likely to hold in the 50s today and it will feel quite chilly this morning as the busy north and northeast wind persists over the area. That combination – cold air and northerly winds – is causing some ocean effect clouds to spill onto the Mid and Outer Cape this morning, however as winds diminish over the course of the day, skies will turn sunny and conditions will improve during the afternoon.
While milder air will return to the area overnight tonight and throughout Sunday, there is actually a small chance that parts of the Cape dip into the 30s this evening / the first half of tonight.
During a weather set-up like today…with high pressure building overhead and cresting right over the Cape this evening…conditions become perfect for a period of quickly falling temperatures near and after sundown…with temperatures continuing to tick downward until very late at night when a light return flow of air finally becomes established.