Here's why:

* Earth's Tilt: The Earth is tilted on its axis at approximately 23.5 degrees. This tilt is the primary reason we have seasons.

* Tropic of Cancer: The Tropic of Cancer, located at 23.5 degrees North latitude, marks the furthest point north where the sun can be directly overhead at noon.

* NW Arkansas Latitude: Northwest Arkansas is located at a latitude significantly north of the Tropic of Cancer.

Therefore, the sun's path through the sky in NW Arkansas will always be at an angle, never reaching a point directly overhead.