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Some sun, then clouds; mild
Cloudy with a touch of rain
Cold with periods of sun
of sunlight, then sets at
of moolight, then sets at
While temperatures will be well above average in Pittsburgh this weekend, colder air will arrive next week for the final days of 2014. more >
Dec 20, 2012; 5:00 AM ET
The 540 line is often used by meteorologists to determine the chances of rain vs. snow.