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Mostly sunny and less humid
Mostly sunny and very warm
An afternoon thunderstorm
of sunlight, then sets at
of moolight, then sets at
The humid spell will persist through Tuesday. The combination of the steamy air and another storm system will spark more numerous showers and thunderstorms. more >
Dec 20, 2012; 5:00 AM ET
The 540 line is often used by meteorologists to determine the chances of rain vs. snow.