Clouds continue increasing in the New England sky from southwest to northeast Monday in advance of the next weather system.
Although the storm center driving a change in the weather from our wonderful weekend sunshine is well to our west, over the Great Lakes, warmth and increasing moisture is being projected well in advance of the system. It will collide with our antecedent dry air to set up a clash that not only brings increasing clouds, but eventually rain.
We expect rain to begin as light and scattered showers Monday late afternoon in Connecticut. Showers may arrive between 6 and 8 p.m. in the Worcester to Boston corridor. They may not arrive until late evening and even after midnight for someplace like Central and Eastern Maine.
With showers coming after daytime high temperatures Monday afternoon in the 70s and 80s – warmest in the North Country – overnight lows will hang in the 60s and preclude fog development for most of us. Cape Cod may see some fog by dawn.
The Cape will also find increasing southeast winds gusting to as high as 40 mph Tuesday morning, with that wind core may be shifting to the coast of Maine by midday with gusts to 50 mph possible briefly from Penobscot Bay, Downeast.
Widespread morning rain will mean a slowed morning commute for New Englanders, but the back edge of the rain marches through around midday to early afternoon Tuesday. That means that afternoon sun will emerge for all but central and eastern Maine, boosting temperatures into the middle and upper 70s during the second half of the day. It will also set up a quiet Tuesday night and splendid Wednesday.
The next rain-maker arrives Thursday and likely includes a storm center developing near the coast, meaning rain may be a bit cool for some of us during the day Thursday. Then, the upper level energy driving this storm moves overhead Friday, prompting a few more scattered showers with a breeze until warmth rebounds this weekend.
At this point, most of the weekend looks dry, though a low chance of an afternoon thunderstorm builds by Father’s Day Sunday afternoon, eventually leading to a higher chance of scattered thunder early next week in the exclusive First Alert 10-Day Forecast.