TRY THIS
https://water.weather.gov/precip/index.php
Let's see how brief I can be explaining this. First, all those rainfall maps you saw on FarmLogs, I speculate, started here. NWS captures Doplar radar reflectance. The more signature returned, the harder the rain. The longer it rains, the more rain falls. All this reflectance is corrolated billions of times (literally) with actual ground readings - like from the COCORAHS stations mentioned above. The amount of data this generates is astronomical. Until recently, there was no way to economically store a tenth of it and turn it into something understandable. Now, we can. When you look at the map you are looking at average, estimated rainfall in a square - a grid - about 2 1/2 miles by 2 1/2 miles. I think there are plans to reduce it by half. So, when you look at the map many of you will conclude at one time or another it isn't accurate because your one, free, uncalibrated plastic rain gauge has a different amount in it. Just keep in mind each square is an average of thousands of virtual rain gauges in that square.
The map is dynamic. Zoom in. Zoom out. Pan. Find your area of interest. Beneath the map are a bunch of controls you can use to change the time period (today, yesterday, total for the last 7-days, and more). For that time period you can look at the observed precipitation, the normal, and the deviation from normal in inches and percentage.
Beneath the TIMEFRAME box, look for MAP OVERLAYS. Here you can change the precipitation layer from a solid color to something more transparent using the slider. You can do the same with state boundaries and county boundaries which are not displayed until you put a check mark in the little checkbox to the right of the map layer title (STATE -------> checkbox; COUNTY -----> checkbox).
Then, to the right you will see a LOCATION box. It defaults to "full conus." The other viable option is State, but that's useless for what you probably want to do. To search for an address or any other form of location coordinate OR description go back up to the top right corner of the map. You will see a search box (find address or location). Type anything in there and it's likely to work!
Good luck!
One other thing. The 24-hour period is ZULU time. The day starts at midnight, Greenwich, England. Here on the east coast that's 7pm EDT - I think.
One more thing, always one more thing. The default view is for yesterday and it takes a couple hours into the new day for yesterday's precipitation picture to be validated and updated. There is a tab for "Today" but it's going to be much less accurate than tomorrows picture for today will be.