What’s the best weather sensor

I got a question. What is the best weather sensor for here in the us, I need a accurate sensor to monitor the current weather Sunny, mostly sunny, partly cloudy, rain etc. I want to use it in a automation for my pool solar heater to shut a valve off if the conditions aren’t favorable for the switch to open the valve if there is no sun out to warm up the returning water to my pool. I’m trying to make the heater as efficient as possible. Dark sky is a option but there is a good amount of calls to the automation I’m not sure if the limits on that particular sensor will use up all the calls each day. Currently I’m using (I believe yr sensor) I’m not home right now so I can’t verify the the actual component.

Thanks for any advice!