The U.S. Air Force Thunderbirds will fly during the Joint Base Andrews Air Show on Saturday and Sunday. (U.S. Air Force Thunderbirds)

Charles County Fair Livestock exhibits, arts and crafts, pig races, and carnival and pony rides. Opens Thursday 4-10 p.m. Through Sunday. Charles County Fairgrounds, 8440 Fairgrounds Rd., La Plata. 301-932-1234. Free-$5.

“Sleepless in Seattle” Bring a lawn chair or blanket for the 1993 romantic comedy, shown on the plaza as part of the Date Night Movie series. 7 p.m. The series continues through Sept. 28. National Harbor, 165 Waterfront St., Oxon Hill. 877-628-5427. Free.


NextNOW Fest The arts festival for Terps and by Terps features performing and visual artists from across campus and the country, including the Jazz Professors, the Australian String Quartet and Delta Chi Xi Honorary Dance Fraternity classes. 6-11 p.m. Through Saturday. Clarice Smith Performing Arts Center, University of Maryland, Route 193 and Stadium Drive, College Park. 301-405-2787.

The Roustabouts The blues-fiddle band closes the Summer Jam Series with an outdoor concert. The event includes vendors, a moon bounce, a clown and face-painting. 6:30 p.m. Hyattsville Municipal Building, 4310 Gallatin St., Hyattsville. 301-985-5000. Free.

Creole Gumbo Jazz Band The band, formed in 2009, performs a concert of early New Orleans jazz. 7-9 p.m. Calvert Marine Museum, 14200 Solomons Island Rd., Solomons. 410-326-2042. $15-$20.

Old Parish House at 200 Activities to celebrate the historic site’s 200th birthday include a contra dance with Transatlantic Crossing (Friday 7:30-9:30 p.m. at St. Andrew’s Episcopal Church, Parish Hall, 4512 College Ave., College Park), an afternoon of vintage games, crafts, wagon rides, food and stories by Debra Mims (Saturday noon-4 p.m.), and a day of history programs (Sunday
1-4 p.m.). Old Parish House, 4711 Knox Rd., College Park. 301-864-8666. Free.

“An Inspector Calls” A dinner party is interrupted by an inspector investigating the death of a young woman. 8 p.m. Through Oct. 1. Laurel Mill Playhouse, 508 Main St., Laurel. 301-617-9906. $15-$20.

Shreya Ghoshal One of Bollywood’s leading Indian playback singers performs. 8:30 p.m. MGM National Harbor, 101 MGM National Ave., Oxon Hill. 844-346-4664. $117.28-$235.46.


Maryland Lighthouse Challenge The annual driving tour celebrates the state’s maritime heritage with stops at 10 historic lighthouses. Participants will receive free souvenirs at each stop. 8 a.m.-6 p.m. Through Sunday. Visit website for full list and directions. ­410-437-0741. Free, some parks charge admission or climbing fees.

Joint Base Andrews Air Show Aerial demonstrations, vintage and legacy aircraft displays, and performances by the U.S. Air Force Honor Guard and the Air Force Band. Free parking and shuttle service available from FedExField. 9 a.m.-5 p.m. Through Sunday. 1500 W. Perimeter Rd., Joint Base Andrews. 240-612-4428. Free.

Monarch Festival This celebration of the butterfly features educational displays, games, crafts and other activities. 10 a.m.-2 p.m. Patuxent Research Refuge, North Tract, Route 198 between the Baltimore-Washington Parkway and Route 32, Laurel. 301-497-5887. Free.

Amps & Ales Craft Beer and Music Festival More than 25 breweries offer 50-plus beers on tap, while bands including People’s Blues of Richmond, Higher Hands, and Kit & the Chardonnay Boys perform. Noon-8 p.m. Prince George’s Stadium, 4101 Crain Hwy., Bowie. 301-805-6000. Free-$75.

A Taste of St. Mary’s The outdoor food festival features local restaurants and caterers, kids’ activities, entertainment, a raffle and a classic car show. 1-5:30 p.m. Leonardtown Square, near the Rex, 22695 Washington St., Leonardtown. ­301-737-3001. Tickets are 10 for $10 and 20 for $20.


Hispanic Festival The annual gathering celebrates National Hispanic Heritage Month with music and entertainment, carnival games, pony rides, arts and crafts, and vendors. Noon-6 p.m. Lane Manor Park, 7601 West Park Dr., Adelphi. ­301-422-7284. Free.


Solomons Plein Air Festival A competition in which spectators can watch more than 30 artists from around the world paint live scenes outdoors. Cash prizes awarded. Opens Monday. Through Sept. 24. Carmen’s Gallery, 14550 Solomons Island Rd., Solomons. ­410-326-2549. Free.


Rachel Eddy The West Virginia fiddler closes out the Road Scholar Summer Music Series with a performance. 7 p.m. Calvert Marine Museum, 14200 Solomons Island Rd., Solomons. 410-326-2042. $10.


Little Explorers: Sailor A sailing-themed program for children ages 3-5 with an adult. 10-11 a.m. The Shop at Farthing’s Ordinary, 47414 Old State House Rd., St. Mary’s City. 240-895-4990. $4.

“Un-easement” Rachel Schechtman’s recent sculptures address body-related anxieties using materials that change over time. Through Sept. 28. College of Southern Maryland, Tony Hungerford Memorial Art Gallery, 8730 Mitchell Rd., La Plata. 301-934-7828. Free.

— Compiled by Sarah Lane from staff reports