The Weather: Mostly sunny with a high of 91 degrees, according to the National Weather Service. There is a 20 percent chance of thunderstorms between 3 and 9 p.m. Forecast nighttime low is 66.
The Headliner: The Dukes of September Rhythm Revue is a supergroup featuring Donald Fagen of Steely Dan; Michael McDonald, formerly of the Doobie Brothers, and Boz Scaggs. It figures to be an auditory feast for those who love the soft rock sounds of the 1970s. Tickets at $43 and $33 are still available. Gates open at 6 p.m. Show starts at 8.
The Highlight: Country music is not typically a big part of the Musikfest repertoire. Today that changes at Plaza Tropical with a whole day of live country, starting at noon and culminating with Allentown’s own Scott Marshall & Marshall’s Highway at 7 p.m. and Connor Christian & Southern Gothic at 9:15.
For the Little Ones: It’s time for the circus at the Peeps & Company Banana Island Craft Tent. Rides, games and an assortment of kids activities are available with live music by Miss Maggie Sings, Fuzzy Lollipop and 2+1 Math Rocks!
The Classical Musikfest: The Abaca String Band (Vesper Concert Series, 5 p.m., Central Moravian Church) is a string quintet of guitar, mandolin, violin, viola and double bass from New York City and making a return trip to the festival because it has been so popular. How Fair A Sound, with flute, harp and vocals, is the Chamber Series concert at 7:30 p.m. in the Old Chapel.
Mary Ellen’s Celtic Corner: The Killdares, from that hotbed of Celtic music – Dallas, Texas – “blend traditional Celtic playing skills, power pop accessibility and straight up rock 'n’ roll hooks” at Volksplatz at 9 p.m.
The Best of the Free Platzes: The March Fourth Marching Band, which was The Highlight of our daily guide on Tuesday, takes its show to South Bethlehem and SteelStacks tonight. The band will parade from the Sands Steel Stage to the east end of SteelStacks starting at 7 p.m. M4 then takes the Americaplatz stage at 9:30 p.m. Boom Chick (TD Bank Community Stage in front of the ArtsQuest Center, 7:30 p.m. and 11 p.m.) is a drum and guitar duo that – much like the White Stripes – owes a lot of its sound to early American rock 'n’ roll and country blues. Gas House Gorillas (KNBT Jazz Cabaret Stage inside the ArtsQuest Center, 7:30 p.m. and 9:30 p.m.) is also a throwback – to rockabilly, swing and jump blues – the music that spawned rock 'n’ roll.