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Mostly sunny and nice
Humid with sunny intervals
Clouds and sun with a shower
of sunlight, then sets at
of moolight, then sets at
Following a surge of humidity and drenching showers to end the week, dry and cooler air will push southward across the Philadelphia area this weekend. more >
Sep 20, 2011; 5:00 AM ET
Why do leaves change from green to beautiful shades of red, orange and yellow in the fall?