1. State Primary Day: State primaries are today, and the polls in Concord will be open from 7 a.m. to 8 p.m. For sample ballots and information about precincts and polling locations, head over to the town website.
2. : Meet Emerson Umbrella artists Wayne Geehan, Sing Hanson, Deb Loverd, Julia Miner, Max Payne, and Ilse Plume, and invited guest artist Annie Downes Catterson at the opening reception for this exhibit, from 6 to 9 p.m. tonight at the .
3. : Investigative reporter Hank Phillippi Ryan presents her most recent mystery novel, The Other Woman at 7 p.m. tonight at .
4. Today in Public Meetings: According to the town website, public meetings posted for today include the Concord Housing Authority at 8 a.m., the Historic Districts Commission at 7 p.m., the Transportation Advisory Committee at 7 p.m., the Board of Assessors at 7 p.m. and the Board of Registrars at 7:45 p.m.
5. That's an Improvement: Patchy fog early should clear to a partly sunny day with a high of 82, according to the National Weather Service, which predicts a partly cloudy evening with a low around 64.