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Delightful with some sunshine
An afternoon t-storm or two
Partly sunny; breezy, cooler
of sunlight, then sets at
of moolight, then sets at
Another surge of milder air is headed to Washington, D.C., after Easter Sunday. more >
Dec 20, 2012; 5:00 AM ET
The 540 line is often used by meteorologists to determine the chances of rain vs. snow.