Heat continues Sunday, greater chance for thunderstorms - Boston News, Weather, Sports | FOX 25 | MyFoxBoston

Heat continues Sunday, greater chance for thunderstorms

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From FOX 25 Meteorologist Shiri Spear:

Saturday was day number 4 of Boston's heat wave.  The high peaked at 93 degrees there.  And yes, it felt hotter with the high humidity.  Heat indices were around 100 degrees-even in P-town!

You'll wake up to 70s early Sunday after a quiet and muggy night.

A few chances will take place during the second half of the weekend. Highs should still reach the lower 90s in the Boston area, Metro West and the Merrimack Valley.  Much of the Cape will see mid 80s.   Expect upper 80s in Worcester and the South Coast.
 
The chance of rain will increase too.  The mostly likely placement for t-storm development will be north and west of Boston.  There will be a 40-50% chance in western and central Mass into southwestern NH.  The Boston area, southeastern NH and North Shore have a 30% chance of rain/storm Sunday.  That mean you need to stay alert to the rumble of thunder.
 
It will likely remain dry across southeastern Mass.  The Cape only has a 10% chance of a Sunday storm, 20% on the South Shore.
 
Here's the problem: downpours.  With the isolated storms that do pop up Sunday afternoon, we'll have to watch for the downpours that result in locally heavy rain over a short amount of time.  This could lead to a few spots seeing flooded roadways and a quick rise in streams and creeks.  Widespread flooding is not expected.  This would be a highly localized problem that will remain a threat into next week as deep tropical moisture slides into place a fuels the showers/storms.
 
The humidity is not coming to an end any time soon.  Dew points will hover near 70 degrees, meaning oppressive conditions roll on.
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