Oregon International Air Show, 7 p.m. July 17, 11 a.m. July 18-19. The showcase will feature U.S. Navy Blue Angels, one of the most sought-after air show teams, along with the U.S. Air Force Heritage Flight, CAF Red Tail Squadron, the Lucas Oil Jump Team and multiple aerialist pilots. There will be aircraft on display and a dedicated kids area. Hillsboro Airport, 3355 N.E. Cornell Road, Hillsboro, Ore.; $25; $5 for ages 5 to 11; and free for military members and ages 5 and younger. 503-629-0706 or www.oregonairshow.com
Sand in the City, 10 a.m. to 9 p.m. July 17-18; 10 a.m. to 4 p.m. July 19. Celebrating its 20th anniversary, the community event features a sand sculpture competition, a children’s sand box, kids zone and music on the main stage. Proceeds benefit local children’s charities. Pioneer Courthouse Square, 701 S.W. Sixth Ave., Portland; $4 suggested donation, $10 for family. www.sandinthecitypdx.org
Fairs & festivals
Battle Ground Harvest Days, 1 to 11 p.m. July 17; 10 a.m. to 11 p.m. July 18. Battle Ground’s 48th annual celebration launches with a carnival and beer garden. The Harvest Nights Car Cruise at 7 p.m. July 17 is the Friday highlight. The Grand Parade kicks off July 18, along with a kickball tournament, tasting room, classic car show, main stage entertainment and Geocoin challenge. Battle Ground Community Center, 912 E. Main St., Fairgrounds Park, Northeast Fairground and Grave avenues, Battle Ground; free, $5 for wine and beer gardens, $15 to $20 for cruise in car registration. www.battlegroundchamber.org or www.harvestnightscarcruise.com
Cathedral Park Jazz Festival, 5 to 10 p.m. July 17, noon to 10 p.m. July 18 and 1 to 8:35 p.m. July 19. The 35th annual free jazz festival features local performers under the St. John’s Bridge, with performances by La Rhonda Steele, Blueprints Trio, Kung Pao Chickens, Chris Parker Quartet, Paul Creighton Project and Hailey Niswanger’s PDX Soul. Cathedral Park, 8600 N. Lombard St., Portland; free. www.cpjazz.com