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.
itsaboat mate...Life is just a boat and then ya marry one !