Boston Marathon March 12, 2020 6:01 pm Coronavirus May Push Boston Marathon to Fall, Source Says Boston Mayor Marty Walsh has been talking with communities along the route of the Boston Marathon, and it’s possible that the race may be delayed until autumn, a source said. US & World Videos 3:13 Weather forecast: Clear and sunny, with temps in the 70s 1:29 Sumner Tunnel in Boston to close for one month 2:17 Police testimony continues in Karen Read murder trial 2:03 Mass. school officials threaten to suspend student protesters 2:13 Karen Read trial Day 6: Witness testimony resumes