Bryan Batt marries longtime partner Tom Cianfichi Credit: Chris Granger

Bryan Batt is a married man! The Mad Men star, who played Salvatore Romano, said "I do" to longtime partner Tom Cianfichi on Sept. 28 in New Orleans, Us Weekly exclusively confirms.

"After 25 years together we tied the knot," the actor tells Us. "First legally in New York City, and then in a ceremony and reception under the canopy of oaks in a beautiful Garden District courtyard in New Orleans."

With paper lanterns in shades of green and gold illuminating the family-filled wedding party, Batt and his event planner love exchanged vows while a jazz quartet played "What a Wonderful World."

Among family and friends, Batt's Mad Men costar Christina Hendricks, her husband Geoffrey Arend, Patricia Clarkson, Christian Le Blanc, and Harriet Harris were also in attendance during the emotional ceremony.

"I've had some good ones, but this was the best night of my life!" the actor, who owns several home decor stores with Cianfichi, gushed to Us.

The couple's magical day almost faced a downpour, though. "It was raining all day, and although there was a tent, it could have been messy," Batt told Us. "At 4 p.m. reported 100 percent chance of rain between 6 and 10, [so] we looked to the heavens and asked our late moms to do whatever they could, [and] at 5:30 p.m. I checked the report again, and [there was] zero percent chance of rain — it was beautiful!"