I've been across the lower crossings several times (none in the last week or so) in many different times of the year, including spring. I suspect that the rocks you normally hop across might be under water & it may be moving a bit faster than usual.
I'd suggest you leave the lot in sandals as the first crossing is at the very beginning. I'd be surprised if you couldn't cross the bottom one going any deeper than your knees, after you cross put your boots on. It's summer, it won't be that cold.
The other thing that is a huge plus, bring poles. They help on testing an area in front of you to make sure it's as deep as you think it is, as flat as you think & they really help with balance + they help you steady yourself in the current.
I was out last week in the ADK's in a stream (Indian Pass Brook, a bigger crossing than the Field/Tom crossings) that the ADK staff was warning people about. It was 6-8" above my knees (I'm 6') & moving pretty good as they have had a lot of rain. With poles, I never thought I was in any danger. That said, I'm not sure I would have crossed without the poles.
The streams I'd be leery about crossing this week on the standard approaches to the 4k peaks in the Whites would be Gale River, Little River (N. Twin Trail) the crossings on the Signal Ridge approach to Carrigain, Liberty might be interesting but should be okay.
The one peak no one should try by the regular route is Owl's Head from Lincoln Woods. Best way, IMO for doing Owl's Head this weekend is via bushwhack, either beyond the Franconia Falls Trail or Black Pond, both promise a whole lot of mud & the slide may resemble small cascades.