Welcome to September and the second day of this three day holiday weekend. Unfortunately the weather conditions will remain very similar to what we experienced yesterday and as a matter of fact will remain in place until Tuesday. That means considerable cloudiness, humid, warm and scattered showers and thunderstorms at times. It also means that we can expect periods of dry weather for several hours at times, especially today as there should be a lull in the shower activity until late day or this evening. Tonight and into early Tuesday any shower or thunderstorm will be capable of producing heavy downpours.
Early this morning radar is depicting showers across eastern Massachusetts with a few thunderstorms over Rhode Island and Cape Cod. All this activity is pushing eastward and will be offshore in a couple of hours. Much like yesterday, when there were numerous morning showers, most of the remainder of the day should be rain free, although a shower or thunderstorm can pop up at any time.
With the stalled frontal boundary to our north we remain on the warm and muggy side of the front with a continued moist south to southwest flow. That will not change until a cold front arrives sometime during Tuesday and slowly pushes this nasty weather out to the Atlantic. It will not be until later Tuesday night and Wednesday before improving conditions take hold.
Wednesday begins a nice stretch of weather with much lower humidity, drier conditions and cooler temperatures. High pressure and a reinforcing shot of cooler air, via a second cold front passage Thursday, will bring chilly air into our parts to end the work week.
Four Day Outlook:
Today through Monday night: Considerable cloudiness, warm and humid. Periods of scattered showers and a few thunderstorms, becoming more numerous Labor Day and Monday night. Areas of fog late night and early morning. High temperatures in the low 80s today, about 80 on Labor Day. Nighttime lows in the upper 60s to a few low 70s tonight, mid 60s to 70 Monday night. Light south to southwest winds.
Tuesday and Tuesday night: Showers and thunderstorms, winding down and ending, followed by a partly cloudy overnight. Highs around 80. Cooler at night as temperatures fall into the mid and upper 50s.
Wednesday: Sunshine returns, with a few afternoon clouds. Not as warm and much less humid. Highs from the mid to upper 70s.
Wednesday night: Fair skies and comfortably cool. Lows from the mid 50s to 60 degrees.