If you look at the design of windows on old houses from about 1700 to 1940 they facilitate exactly this. They open at the top and/or bottom to allow the circula

If you look at the design of windows on old houses from about 1700 to 1940 they facilitate exactly this. They open at the top and/or bottom to allow the circulation of air. Hot air will naturally rise and exit from the high up window. When air conditioning took off in the 1950s this became less important.