Store expansion: The Town of Smithtown planning board meets at 8 p.m. at the Smithtown Senior Center (420 Middle Country Rd.). The board is expected to consider the proposed expansion of a King Kullen store in St. James and a proposal for a Kings Park apartment complex. Follow Carl MacGowan’s Twitter updates @CarlMacGowan.
Runway run: The Town of Islip will announce its second annual Long Island MacArthur Airport 5k Run for Veterans at a news conference at 11 a.m. at the airport in Ronkonkoma. Last year’s inaugural event featured nearly 1,300 runners who raised $45,000 for veterans. This year’s run will be held June 4. Follow Sarah Crichton’s Twitter updates @scrichton.
Planning board: The Amityville Village planning board meets at 7 p.m. in the Village Court Room (21 Ireland Place, third floor). Follow Nicholas Spangler’s Twitter updates @spanglernewsday.