March 1, 2011 6:40 am EarthWatch AM Forecast March 1 Bill says we’re in for a chilly day with lots of sunshine. US & World Videos 3:08 One more warm day before temperatures drop over the weekend 2:40 How long will this summer-like warmth last? 2:14 The summer preview continues 2:16 Clearing out, warming into the 80s 2:35 Warm trend continues, but rain is on the way