Showers and thunderstorms are going to quickly develop late this morning and into the afternoon hours Thursday. A cold pool of air above for the time of year is moving over the region. This cold air, located at 10,000 feet is cold enough to allow some small hail to form during some of these storms. In other words, this is going to be an active afternoon in the weather department.
I expect these storms to develop quickly later this morning, and I’ll be watching the radar closely. In Boston the most likely time of these storms is noon to about 4 p.m. It doesn't mean there couldn't be a few earlier or later than this window, but that is the most likely time.
The storms will be quick, contain heavy downpours with the possibility of small hail. There could also be strong gusty winds accompanying these storms.
Once sunset occurs, the fuel for the storms will be gone and so too with the activity. It’s going to be a cool night for August with readings more like September. Lows could reach the upper 40s in colder spots, but most of us will be in the 50s. Great sleeping weather!
Sunshine prevails for the next several days with warm afternoons, low humidity and clear comfortable nights. The moon will be increasing in size this weekend and with the great temperatures an evening walk is a great idea. For those of you on vacation starting this weekend, the weather is going to cooperate at least into Tuesday.
Today: Morning sunshine followed by building clouds and developing thunderstorms. Some storms could be accompanied by strong winds and small hail with highs near 80.
Tonight: Any leftover showers then becoming clear and cool. Lows in the 50s, but near 60 in Boston and the Cape.
Friday: Sunny highs in the lower 80s.
Saturday: Sunny around 80, cooler at the beach.
Sunday: Sunny highs in the lower 80s, cooler at the beaches.
Monday: Sunny highs in the lower 80s.
Follow updates from David Epstein on Twitter @growingwisdm.