Discussion and forecast for metro Boston, North Shore and western suburbs:
A weak cold front is moving across the area early today and with it comes a chance for a shower or two. Most of the shower activity this morning is over portions of Connecticut and western Massachusetts. This is all pushing east southeastward with the bulk of this activity moving toward Rhode Island and southeast Massachusetts. Sky coverage will vary from mostly cloudy to partly sunny, with the afternoon hours now looking to be the part of the day we see the most sunshine. Still, a shower cannot be ruled out in the afternoon or evening. Don’t cancel any outdoor plans because most of the day for most of the landscape should be dry. Some may see one or two showers and others may not get a drop of rain. It will be pleasantly warm as high temperatures climb to the low 80s. West to northwest winds 5 to 15 mph.
Beach weather will be improving late morning into the afternoon. Partly cloudy skies for the afternoon with a slight chance of a pop up shower mid to late afternoon. High temperatures around 80 degrees. West to northwest winds 10 to 15 mph. Moderate to high UV Index. Rip current risk is low. Water temperatures comfortable, in the mid 60s to 70 degrees.
Tonight, other than a slight chance of an evening shower the idea is that it will be a dry night overall with just a few clouds around. Temperatures will cool down to the mid and upper 50s, around 60 in Boston. Light west winds under 10 mph.
Sunday, varying amounts of clouds and chance of a shower as a weak disturbance and associated cold front move through. Best chance for rain will be in the mid to late afternoon. A few degrees cooler with the highs reaching the mid to upper 70s. West to northwest winds may gust to around 20 mph in the afternoon. Overnight, brisk northwest winds will usher in cooler air and generally fair skies prevail. Lows dip into the low to mid 50s. It certainly will not feel like your typical early August night. This cooling trend does continue into the early portion of the work week.
A large high pressure system will be building out of Canada and into the Great Lakes. It then expands eastward and controls our weather early next week. Monday and Tuesday should be two splendid days with considerable sunshine and temperatures on the cooler side. Highs both days are likely to remain in the mid to upper 70s. Overnight lows from the upper 40s interior to low 50s coast on Monday night, generally mid 50s Tuesday night. Sounds a bit more like early September rather than early August.
Looking ahead a low pressure system and its associated cold front will probably bring us a period of showers by Thursday, with Wednesday being the transition day from sunshine to increasing clouds.
Enjoy the weekend.