Location I'm using is "Oak Knoll, Wisconsin".

I was using the map on the site to drag the location balloon to the lakes in the town of Mukwonago, Wis but when releasing the "location balloon" it gives me Oak Knoll, Wisconsin.  I believe Oak Knoll is a street somewhere in Mukwonago.

Oak Knoll is a suburb of sorts within Mukwonago -

https://wisconsin.hometownlocator.com/wi/waukesha/oak-knoll.cfm

Apparently, they call it a "populated place" whatever that means :)

So, that area probably only has one weather station. So all reports for that area will be the same.

Weather can differ greatly over very short distance. Depending on lots of things, trees, buildings, large body of water, hills etc, etc can all change the weather.

Beach fishers know this well. A gentle breeze a few streets away, could mean gale force like winds on the beach, for example.

Just use Oak Knoll as a guide and you should be able to quickly learn what to expect at the actual spot you want to fish.