You can surely read about trail condition from Alpental TH to Snow Lake elsewhere here, but bottom line it’s fine, no problems, no snow.
From Snow Lake, Rock Creek trail #1013 isn’t in bad condition; the worst area is in the upper half with rocky surface partially obscured by a lot of brush on switchbacks. This stretch might take 20 minutes to get through, but otherwise the trail is decent. I’d never taken it before, it’s a bit steep; on the way back up the next day it took my wife and I just about exactly 3 hours to climb the (2500’ gain) trail #1013 end-to-end, and that was with few breaks and the weather was cool.
Middle Fork Snoqualmie River trail #1003 is also not too bad from the Rocky Creek trail junction east to Goldmyer hotsprings. It’s not in wonderful shape, a number of blowdowns, sometimes rocky trail surface, but on the whole quite do-able. At Goldmyer we crossed the bridge and took road 56 up to the Dutch Miller Gap trailhead camp. Road 56 is of course closed to car traffic, and going uphill from the Goldmyer area it’s clear that vehicles can’t go that way anymore --- blowdowns and rockfall, etc, but it’s not a problem to walk on.
The next morning we tried to take trail #1003 back from there instead of the road, and it was great for about the first 20 minutes, but then got really brushy, very slow and frustrating fighting through stuff sometimes over my head so we turned back and took road 56 back down again. Thus I don’t know what the river crossing is like on trail #1003 east of Goldmyer, and I don’t know for sure how much more brush there is --- I only waded through for about 10 minutes or so. Might be a lot more, might be just a little. If anyone pushes through that stretch of #1003 (Goldmyer to Dutch Miller Gap TH), please write that up here!
Bugs weren’t all that bad for this trip; few at our riverside camp (Dutch Miller Gap TH), the occasional biting fly, some sort of annoying in-your-face gnats for much of the second day, but still --- it’s July, and I had expected worse.
We were pleased to eat one or two almost-ripe Huckleberries. Obviously early, but a nice harbringer of things to come!