Humming sound driving 30+ mph

[YarYarBinks]

When I drive my front tires start making a humming sound, like truck tires make. It starts at 30mph and gets noticeably louder up to high way speeds. My tires aren't completely worn nor do they seem like they are wearing unevenly. They have about 35k on them. It started when I drove on a road that was a little rougher than normal. It was a freeway changing to different styles of pavement. I might have them rotate the. And see if it remedies this. It gets louder when I turn either way. Any advice? Thanks