Tuesday is one of those days you'll want to keep your StormWatch7 handy to track live radar, temperatures, and weather alerts while you're on the go. We will be mainly dry, cloudy, and cold for the morning rush, but an isolated, light snow shower, can't be ruled out. By 10 a. m. , light snow will fill in northwest of D. C. with some light accumulation on the grass. By noon, more wintry weather will fill in across the region. The farther south and east you live from D. C.