September 20, 2010 6:18 pm EarthWatch Forecast: Monday, Sep. 20 – Evening Outlook See tonight’s forecast. US & World Videos 2:43 Philly is warmer than Miami, Florida, Monday 2:06 Feeling like summer 2:36 A summer preview 2:50 One more cool day, then warmer weather ahead 3:15 Cold night, then a big warmup this weekend