Howard, who lives outside Philadelphia in Lafayette Hill, Pennsylvania, was married to Lori McCommas for 14 years. The couple has three children: two daughters (Aubrey and Heaven) and a son (Hunter). Howard and his wife divorced in 2003 and remarried again in 2005, but have since separated. Press reports have since noted that Howard is "trying to reunite" with his wife, and that he has stated that he is "chasing after" her. His wife is Jewish, and is raising their children in the Jehovah`s Witness faith.In an interview with NPR, he explains his desire to convert to the Witnesses. He is a self-taught guitarist and pianist.Howard has described physics as his "main love" and has expressed interest in completing his education and obtaining a doctorate.