The H Street Festival, one of the most popular neighborhood fests in the area, will get things rolling Saturday with music, dance, exhibits and more. (Kate Patterson For The Washington Post)

Neighborhoods help build a sense of community, and that’s something worth celebrating at these four fall festivals in D.C. and Maryland this weekend.

H Street Festival

H Street NE between Fourth and 14th streets; Sat., noon-7 p.m., free admission.

The annual H Street Festival, which typically draws one of the biggest crowds of all the neighborhood festivals in D.C., was postponed last month as Hurricane Florence bared down on the Mid-Atlantic. The coast is clearer for this weekend’s delayed celebration, which features 14 live performance stages plus a wide range of vendors and merchants.

Petworth Blocktoberfest

622 Randolph St. NW; Sat., 2-8 p.m., free admission.

A twist on Oktoberfests, the third annual Blocktoberfest offers German beer and food along with live music and family-friendly games (including giant Jenga and giant chess). The event is free, but there’s an option to donate $20 for a wristband that will get you unlimited alcohol and food. (Proceeds will benefit Changing Perceptions.)

HyFest

Polka Dot Park, 4320 Hamilton St., Hyattsville, Md.; Sat., 4-10 p.m., $10 donation.

The second HyFest — organized by Hyattsville musicians and residents — offers a solid lineup of local music. Power rock trio The Effects and funk rock quartet Staycation will perform along with three other bands; Denizens Brewing Co. and Streetcar 82 Brewing Co. will sell beers; and Fresh Afghan Cuisine will sling eats.

Bethesda Row Arts Festival 2018

4841 Bethesda Ave., Bethesda; Sat. 11 a.m.-6 p.m., Sun., 10 a.m.-5 p.m., free admission.

Nearly 200 artists will display their work along four blocks in downtown Bethesda for this 21st annual arts festival. Just about every type of art will be represented at the event — including performance art: jugglers, dancers and musicians will stage pop-up performances throughout.