Those Goodyear Walmart specials are absolute junk. I had them on my Bonneville and they are completely worthless. Your problem is 100% due to ****y tires. I'm currently running kuhmo ecsta lx platinum and have no issues in the rain. They don't seem to be lasting as long as I had wanted but I do drive like a madman.
Ditch those Goodyear POS tires for sure !