2. Concord Festival of Authors: Mystery Night: At 7:30 p.m. tonight at the Concord Free Public Library, the Concord Festival of Authors is presents "Mystery Night," with master of ceremonies Brian McGrory. Mystery Authors include: Margaret McLean, William Landay and Kate Flora. The free event is sponsored by the Friends of the Library.
5. Clouds Early, Patchy Fog Late: Clouds early should clear to a mostly sunny day with a high of 69, according to the National Weather Service, which predicts patchy fog overnight with a low of 45.