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A few flurries
Variably cloudy and windy
Mostly sunny and chilly
Warmer with a shower possible
Turning out cloudy and breezy
Unseasonably cold conditions will hold in the Philadelphia area through this weekend, before temperatures moderate early next week. 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?