 The WTOP Traffic Center is presented by Window Nation. Buy two windows, get two free. Visit windownation.com. I'm Robert Workman, WTOP Traffic. Overnight, we're talking partly cloudy skies, comfortable temperatures, lows even in the 60s in some suburban areas. And then tomorrow, mostly cloudy with some showers. A warm day, high 80 or so, high in the 80s. Partly sunny with more rain on Sunday and hot highs in the 90s. Rockville is at 74 degrees.