I only turn it on in the afternoon when it’s sunny as the snow melts over my garage and then spills over the eavestrough. So I need to turn it on when the temp is 0 celsius and higher with sun. I tried to find a way to add a device that basically has weather read locally, can’t seem to find one though
Since you said Celsius, what country are you in? Not all of the popular SmartThings weather options work for the UK, because many of them depend on ZIP Code.