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Sunny to partly cloudy
Mostly sunny and pleasant
Cloudy with a few showers
of sunlight, then sets at
of moolight, then sets at
After a cool weekend that started wet, more typical early October weather will return to Philadelphia as the first part of this week progresses. more >
Dec 20, 2012; 5:00 AM ET
The 540 line is often used by meteorologists to determine the chances of rain vs. snow.