I’ve tried the 3 day history on Weatherunderground but it defaults to MSP airport which I don’t want. Plus you have to add up each hour of recorded rainfall which is tough for me and my Rochester-level math training
This is the website I use. Seems to be pretty dang accurate. It’s interactive so you can zoom in and click the specific area you want to check & it will tell you how much rain has fallen from the last 1 hour or 72 hrs