Lamesa students are having a three-day weekend twice this month.They’re out for a student holiday Monday. It’s a professional development day which means teachers and staff will report to work.O’Donnell school students are on a four-day week schedule. They don’t attend classes on Mondays.Everybody else does. It’s a school day for Klondike, Sands, Dawson and Borden County students.It’s a different story Feb. 17. Schools across Dawson County will be out for President’s Day, the one day out of the year honoring the men who served as the country’s 47 presidents.