Just want to report that we were able to Summit on June 20 with just hiking shoes and hiking sticks. You really don't need microspikes or crampons. The last switchbacks to trail crest is the only spot that you need to pay attention but I'm sure the snow will be gone in a week. Overall, I think it's very doable to do a one day hike without any winter gears. There were plenty parking at the portal so that's also a good news. Good luck everyone.
