The Midcoast is celebrating the long Fourth of July weekend this year with an array of family-friendly activities Friday through Tuesday, July 1 through 5, but for the second night in a row, fog has rolled in off the ocean and prompted firework postponements again.

Both Thomaston and Camden are now scheduled to display their Independence Day fireworks show on the same night, Tuesday, July 5, beginning soon after 9 p.m.

The highlight of this year’s Festival of Independence have been concerts in Camden; the annual Thomaston Old-Fashioned 4th of July celebration Monday, July 4; and the underwater and above-water fireworks display Tuesday, July 5, in Camden Harbor.

Organizers had been watching the weather for the evening of July 3, and by 6 p.m., the decision was made to postpone the fireworks until July 5, at 9:15 p.m. As of 6 p.m., July 3, fog was rolling in from Penobscot Bay and organizers did not want a repeat of the 2009 fireworks show, when fog eliminated visibility to almost zero.

Likewise, Thomaston fireworks organizers decided that fog on July 4 would dampen the show too much, and rescheduled it all for July 5.

The rest of the Festival of Independence events remains on schedule, said Dan Bookham, director of the Camden-Rockport-Lincolnville Chamber of Commerce.

On July 3, Camden Rotary Club presented its free concert afternoon, Music by the Sea; and, before and after the evening fireworks, Bay Chamber Concerts presented classic Motown artists Junior Walker and the All Stars, both in and around Camden Harbor Park. In addition to the fireworks and concerts, the Festival of Independence offered outdoor activities, performances and other family attractions.

“The July Fourth weekend is a time for families to get together and relax during the beautiful Maine summer,” said Daniel Bookham, executive director of the Camden-Rockport-Lincolnville Chamber of Commerce.

Festival of Independence schedule

July 1: Second annual Bayside Block Festival 4 to 7 p.m., downtown Camden; Celebration Life Family Church concert 5 p.m., Camden Amphitheatre; Bay Chamber Concerts’ 51st season kickoff, 8 p.m. at the Rockport Opera House.

July 2: Concert Handbell Choir of the St. Luke Lutheran Church of Gales, Conn. in Camden Amphitheatre; Fabulous 50s and Sensational 60s Car Meet and Antique Aeroplane Show 9:30 a.m. to 5 p.m. at Owls Head Transportation Museum (also July 3).

July 3: Music by the Sea noon to 5 p.m. in Camden Harbor Park featuring Mondaynight Jazz Orchestra, Midcoast Community Band and Steelin’ Thunder; and Dancing in the Streets with Junior Walker and the All-Stars, 8:30 p.m.

July 4: Thomaston’s Old-Fashioned 4th of July 6 a.m. to 10 p.m., downtown including 11 a.m. parade and 9:15 p.m. fireworks; and 195th Army Band of the Maine Army National Guard concert 3 p.m. in Camden Amphitheatre.

July 5: Historian James Nelson speaks about his new Bunker Hill book 6:30 p.m. at Camden Public Library.