I brought shorts and a tshirt, a warm jacket (Patagonia Puffball), a lightweight baselayer top and bottom, marmot precip rain pants, golite rain jacket, two pairs of socks, fleece gloves, fleece hat and a sun hat. It's what I bring on pretty much all trips that might get cold.
As for alternates, consider staying off the CT even after Hope Pass. The route over Elkhead Pass (?) is excellent, and so is the CDT. The CT, is in the forest and misses great mountains. No idea why they chose to put it where they did.