Last time we were in Disney World and it rained, everybody bought a $3 Mickey Mouse poncho and pretended it was sunny. The parade in Merrimack (1:00 pm) is still scheduled. See that parade and continue to Wolfeboro later in the day. Stop at the Budweiser and Able Ebenezer breweries while you're in town. Then let somebody else drive. (Free samples at both). The Rotary Club in Merrimack puts on a great "Family Fun Day" after the parade. More info at
www.Merrimack4th.com