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    More Waves of Cool Air for Philly Into Mid-September

    By By Alex Sosnowski, expert senior meteorologist.
    September 10, 2013, 2:51:39 AM EDT

    More cool air is headed back to Philadelphia, but there is good news for those who want summer warmth to hang on.

    At least two more waves of cool air will roll into the region. One will arrive by Sunday night and stick around into Monday. Another wave is due in late next week.

    In between the cool waves, folks who like warmth and humidity will be satisfied as well with steamy air quickly to return for midweek.

    The passage of a cool front Sunday may bring a stray shower in the morning.


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    The next front may bring spotty showers and thunderstorms later Wednesday into Thursday. The thunderstorms on Thursday could turn severe.

    RELATED:
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    Detailed Philadelphia Forecast
    Philadelphia Local Radar

    The vast majority of the time will be free of rain for outdoor plans, projects and construction activities.

    The weather at Washington, D.C., Monday evening for the Eagles first game of the 2013 season should be mainly clear and comfortable with temperatures falling through the 70s.


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    As far as the tropics are concerned, no systems will directly impact the area through at least next week.

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