Jul 31, 2015 8:48 PM
Warm and Less Humid air will be the story of the weekend, the only issue will be an upper level trough in place from the Great Lakes to the Northeast. This trough will supply the pleasant air from Canada, but it will spin in periodic shortwaves of energy which provide lift and aid in some cloud development and an isolated shower or thunderstorm Saturday afternoon. The greatest threat for that to occur will be from the lakes region northward, especially the mountains thanks to the orographic effect as west winds will lift up over the mountains into the cooler air aloft and in the northern half of the CT river valley. Otherwise, the weekend will be dry with highs in the 80's under partly sunny to sunny skies. This will be a great beach weekend as WSW winds provide a warm land breeze which will help to keep the beaches busy.
Our next real threat for showers or storms will come Monday night and early Tuesday as the high humidity returns and a frontal system sweeps through New England. Highs will reach near 90 in portions of southern NH Monday then mid 80s Tuesday. Temperatures will become seasonally cool by the midweek with temperatures in the 70's. So expect a cooler start to the month of August. This upper level trough is going to be a main part of the weather story for next week. The trough will suppress any sort of big warm up through next weekend.
Have a great weekend!