We summited all four peaks on 8/2 and 8/3. Lots of water on trail from the junction at 11,200' to Twin Lakes. No snow until you reach Twin Lakes. From Twin Lakes to the basin between Sunlight and Windom, you will encounter several very large snow fields that probably will not completely melt out this summer (photo 1). Traction still highly recommended, especially for early mornings. I used crampons, my buddies used a mix of both crampons and microspikes. I'd bet that you'll probably want traction through the end of August at least. We saw a few folks manage without, but again I wouldn't recommend doing so. The route up to the Windom saddle is still pretty much all snow (photo 2). No snow from the saddle to the summit. If attempting Windom AFTER Sunlight (as we did), there is a bootpack that contours across the snowfield from the bottom of the Sunlight gully to the Windom saddle (photo 3). This path stays above 13,300'.
Photos (click for slideshow):