Boston's weather clears up post-flooding, with sunny skies and highs in the low 80s expected, and a warm week ahead.

A flash flood warning is in effect until 9 a.m. for Boston and several communities south of the city, including Brockton, Quincy, and Randolph, officials said Thursday morning. The National Weather Service also issued a flood watch that will remain in effect until 4 p.m. for Rhode Island and eastern portions of Massachusetts and Connecticut.

While there is a slight chance of precipitation on Thursday evening, Pederson said, Friday’s holiday activities should occur under a clear sky with a high in the low to middle 80s. The dewpoint that day, Pederson said, should be “comfortable” at about 55 degrees.

The WBZ Weather Team is highlighting Thursday as a NEXT Weather Alert Day, as heavy rain in the forecast poses a flooding risk for the Boston area. After an active overnight with some areas receiving upwards of 2" of rainfall, we are once again, tracking another round of torrential downpours.

Slow moving thunderstorms and downpours will be around through the overnight. While the threat for localized flooding exists, the storms will not be widespread. Lightning is always dangerous, so make sure you are inside if you are hearing thunder.

Boston faces high heat with a heat advisory, as temperatures near 90 degrees; cooler weather expected later in the week.

There's a heat advisory in Massachusetts and remnants from Chantal could influence storms on Tuesday around Boston.

Rain began falling hard during the top of the second inning of the series finale between Boston and Washington, prompting a sudden delay. The tarp wasp laced on the infield as fans ran for cover. It’s unclear when the sides will resume play.