I have been backpacking in Denali twice for a week each time. The weather changes every second, it could be 65 and you are too hot, then hailing, then raining, then snowing, then back to hot again. It’s a strange place with 20 hours of daylight, it produces its own weather so be prepared for anything. The snow usually stays above about 5000ft in the summer, so below that it will rain, and rain, and rain, or it may not and be nice the whole time. The first time I went it was mellow, the second time was a beast, it rained nonstop for 4 days. The mosquitoes are UNREAL, it’s almost like you want it to rain and be windy. Anyway, the HMG Echo will work if you have the inner tent. I went with a single wall dome tent and it worked well. One thing I suggest is to bring an extra tarp that you can pitch in front of the tent so you can keep dry in the down time, also you can catch rain water off of it. Get ready to see lot's of bears! Any other questions please ask. Here was my setup.