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Cloudy, a little rain; mild
Clouds and sun
Rain and drizzle possible
of sunlight, then sets at
of moolight, then sets at
More seasonable conditions will return to the Philadelphia area this weekend, following mid-October warmth through Friday. more >
Dec 20, 2012; 5:00 AM ET
The 540 line is often used by meteorologists to determine the chances of rain vs. snow.