Ya Dude go for it, being from up north myself 60* day are beautiful fall days, Wife and I go all the time in the fall and enjoy the fall color and the nice walks on the shore. Have the wife bring a light jacket and wear a pull over/zip-up sweatshirt and you'll be fine she can take off one or the other if she gets too warm 11am-1pm and have a great day!! We do it all the time, It's not uncommon for us to bring spare cloths with us and we can change if needed.We're heading to Lake Delevan in Wisconsin. Looks like 10mph winds at least for one day, the other days have rain in the forecast. I figure i'll end up dragging the boat up there, even if we only get out for a day it'll be worth it.