People Magazine is reporting that Kevin Jonas, 22, married Danielle Deleasa, 23, Saturday evening on Long Island, as a heavy snowstorm bore down on the wedding party.
The ceremony was held at Oheka Castle, a 109,000-square-foot estate in Cold Spring Harbor.
The couple told People that the wedding went on as planned. About 400 relatives and friends attended.
"We're so happy that we're finally married and we were able to share the special moment with family, friends and loved ones," the couple told People.
Celebrity event planner Michael Russo created a fairy-tale forest theme that included heated white tents with 14-foot trees and crystals made to look like icicles.
The bride wore a strapless tulle and Chantilly lace Vera Wang gown.
"Danielle looked like a princess," Russo told People.
Jonas' brothers Joe and Nick served as his best men.