Tomorrow is the fall or autumn equinox.
There is a lot more about it in the Astronomical Companion and Astronomical Calendar 2015, but this picture tries to give you a brighter idea of how the Sun rolls overhead, at this equinox (the middle track) as compared with its summer solstice track on the left and its winter solstice track on the right.
The Sun is overhead along those latitudes (the Tropic of Cancer, the equator, and the Tropic of Capricorn) but of course is itself at a tremendous distance outward. One way of putting it is that it’s 11,727 times the width of the Earth away.
The toy Sun in the picture is only 1/40 times the width of the Earth away, and a tiny fraction (but I don’t want to calculate any more numbers) of the size of the real Sun. Still it looks as if it could dry up the strait between Florida and Cuba as it screams over at midsummer.