There are a great many events to choose from across Long Island on this Memorial Day holiday weekend.  We list them seperately for Nassau and Suffolk.

Special Events Memorial Weekend in Nassau County

Bellmore
Bellmore Spring Festival
Bellmore Long Island Railroad Station
Arts, crafts, gifts and antiques
11 a.m. - 6 p.m.
Saturday May 24, 2008 to Sunday May 25, 2008

Levittown
Annual Memorial Day Weekend Festival.
Tri-County Flea Market
A great place for kids and the whole family. This event has a midway, petting zoo, and best of all Grucci fireworks on Sunday.
noon - 11 p.m

Memorial Day Parade
South Hempstead
South Hempstead
Parade begins at 10 a.m. and is sponsored by the South Hempstead Fire Department.
Sunday May 25, 2008

Wantagh
Bethpage Federal Credit Union Air Show
Jones Beach State Park
This is the big event on Long Island this weekend. It feautres  the U.S. Navy Blue Angels and other civilian and military airshow performers. 10 a.m. - 3 p.m.
Saturday May 24, 2008 to Sunday May 25, 2008

Special Events Memorial Weekend in Suffolk County

Bay Shore
Bay Shore-Brightwaters Memorial Day Services amd Parade
The services begin at 8:30 a.m. at the Bay Shore-LIRR Station.  They are sponsored by American Legion Post 365. The parade is at 10 a.m. on Main Street.
Sunday May 25, 2008

Calverton
Memorial Day Ceremony
Calverton National Cemetery
This is also one of the most kwon and well-attended Memorial Day events on Long Island. The ceremonies begin at 1 p.m. in the assembly area.  This year guest speakers include, Cong Timothy H. Bishop (D - NY-1st), Dawn Esposito Gold Star Mother, and Irene Trowell-Harris, Director of the Dept. of Veterans Affairs Center for Women Veterans.  Many families attend this event.
Monday, May 26

Centereach
Memorial Day Parade
The parade begins at 1 p.m. at Henry Street.
Sunday May 25, 2008

Deer Park 
Italian Feast by the  Knights of Columbus
This yearly event includes great food, rides, games, live band,  pony rides cannoli eating contestand much more.
2 p.m. - 11 p.m.
Saturday May 24, 2008 to Sunday May 25, 2008

Riverhead
Memorial Weekend Festival
Palmer Vineyards
Wine tastings and live music.
11 a.m. - 6 p.m.
Saturday May 24, 2008

Montauk 
Montauk Fine Arts Festival
A juried art event featuring award-winning artists in ceramics, digital art, drawing, fiber, glass, graphic arts. It is sponsored by the Montauk Chamber of Commerce.
9 a.m. - 5 p.m.
Saturday May 24, 2008

Port Jefferson
Port Jefferson Juried Arts Festival
A well-known Long Island art celebration where local artists display their work on East Main St.  - it is hosted by Greater Port Jefferson Arts Council, rain or shine.
noon - 5 p.m.
Sunday May 25, 2008