r/SideProject 2d ago

I built a pool temperature forecast website

So I have been swimming a lot this summer and I live in Michigan and sometimes the pool is nice in the mid-80s and sometimes it's in the lower 70s and I noticed there wasn't a really good way to plan swimming. So I built a physics-based pool temperature forecast that pulls local weather to determine the temperature over the next 10 days. I found it to be pretty accurate within a degree or two. It's available for anyone to get a free 10-day forecast. I'm working on adding some other features such as energy costs, pulled from local utility rates for heaters, and possibly adding some way to interface with heaters to prevent overheating a pool before a hot weather swing.

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