I am 5ft 8, ride with the seat in the normal position. I have the 24inch screen. When it is set it is about half way, so way below the eye level and I find I never have to adjust it. In the Summer, nothing like yours, I either have the screen fully down or in the normal position and get air, it is warm though, so its either air and its not clear air or run with the screen in the normal position and get clean air. Its better than the standard screen though