Canada

Around here (rural southern Saskatchewan), imperial still has a stronghold because of our roads, farming, and other factors. Our roads are laid out on a 1 mile grid (some places it's 2 miles north-south) and a square mile is 1 section of land (640 acres).

Even the kids who've never learned any imperial measures still use at least miles for distance when driving the grids. (And that's what we call them: grid roads, not gravel roads or any other designation.) Even equipment without odometers can follow a set of directions like "4 miles north and 3 miles west" because you just count intersections.

Even our legal land locations are given using these ancient units. So I live at NW 19-20-10 W3 and every emergency service and business who needs to knows how to find me.

Fun fact: there are very few flat-earthers around here because of something called a "correction line." The square grid doesn't fit the curved surface, so the roads that (approximately) follow the meridians (lines of longitude) need to be offset every so often to keep them parallel. The roads that intersect those offsets are called "correction line roads" and are used as landmarks when giving directions.

I don't know about pool temperature, but water temperature in the lake and indoor temperature are imperial with outdoor temperature in Celsius. Usually. :)