PM Update: A few showers tonight; decent weekend shaping up The last in a series of three summery days is in the books, as we passed the 80-degree mark yet again. But 70s are in our future for quite a while behind a cool front sliding through the area this evening. Showers are possible, but mainly from D.C. south. The balance of the weekend is dry, although a few showers may return late Sunday. Through Tonight: Scattered showers are likely (60-70 percent chance) south of D.C. this evening. Rain chances steadily diminish from 50 percent in the District to almost zero in northern Maryland. After 10 p.m. or so, the rain should be out of the picture in most spots, with partly cloudy skies. Patchy fog is possible by morning, with lows 55-60 (suburbs-city). Saturday: A very nice day. Any early morning fog rapidly burns off. It's partly sunny and cooler, with highs 70-75. Winds are from the north around 10 mph. Partly cloudy Saturday night, with lows 48-55 (suburbs-city). Sunday: Much of the day is dry and pleasant, but a little wave passing through the area causes clouds to bubble up in the afternoon and brings a 30 percent chance showers. Highs are in the low 70s.