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    Summery Weekend From Pittsburgh to DC, NYC, Boston

    By By Alex Sosnowski, expert senior meteorologist.
    June 25, 2013, 5:38:42 AM EDT

    Warmth and humidity will continue to build over the mid-Atlantic and much of New England Sunday just in time for the official summer season.

    Summer officially began at 1:04 a.m. EDT Friday, June 21.

    Typical summertime warmth combined with humidity started to build into most areas Saturday. For some areas, this will become the second heat wave since late May.

    Daytime highs will range from the middle 80s to near 90 degrees along the I-95 corridor from Washington, D.C., to Philadelphia, New York City, Hartford and Boston and well into the 80s in the Appalachians to Pittsburgh and Buffalo both days this weekend and on into Wednesday of next week


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    The Sunday night will be rather warm and sticky.

    Some folks accustomed to leaving their windows open during the cool nights much of the spring may have their air conditioners running around the clock this weekend into much of next week.

    Most of the time through Wednesday will be rain-free, a change from the first part of the month. However, the uptick in heat and humidity and weak disturbances from Sunday on will lead to widely separated thunderstorms on an almost daily basis with some day-to-day differences in location. Most of the thunderstorm activity will occur between 3:00 and 9:00 p.m.

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    The only exception to the spotty thunderstorm regime will be from northern upstate New York to northern New England, where rounds of thunderstorms from the Midwest will arrive and continue.

    Folks heading to the Firefly Music Festival at Dover, Del., the Great Tastes of Pennsylvania at Lake Harmony, the Pooch-A-Palooza at Canton, Mass., or just heading to a ball game will want to don sunglasses and be prepared for the warmth. Wear lightweight, light-colored clothing, remember to use sunscreen and drink plenty of fluids.

    Water temperatures are cool along the Atlantic coast, ranging from near 70 in Virginia to 60 in New Jersey to 56 in Massachusetts.

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