• Friday

    Sep 4

    84°Lo 63°

    Some sun with a thunderstorm

    Fair for stargazing
    • Cloud
      Cover
      40%
    • Precip
      14%
    • Hours of Precip
      1.5
    more
  • Saturday

    Sep 5

    85°Lo 63°

    Mostly sunny

    Excellent for stargazing
    • Cloud
      Cover
      0%
    • Precip
      11%
    • Hours of Precip
      0
    more
  • Sunday

    Sep 6

    87°Lo 64°

    Mostly sunny and warm

    Excellent for stargazing
    • Cloud
      Cover
      0%
    • Precip
      18%
    • Hours of Precip
      0
    more
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Reading Weather Report

Philadelphia: Sizzling Heat Wave to Start September

September 1, 2015; 2:01 AM ET

July-like heat and humidity will continue around Philadelphia for the first week of September. more >

Astronomy Live Feed

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Curiosity Tastes Mars

Dec 14, 2012; 5:00 AM ET The Mars Science Laboratory Rover 'Curiosity' continues its sampling and analyzing of the Martian surface.

Fri. Stargazing