I created show forecast of weather and I want to show gridlines (of temperature) at up. I tried something like this:

yAxes: [{
      gridLines: {
         display: true,
         color: "gray",
         lineWidth: 1,
         drawOnChartArea: true
      }

And too many other “solutions”. But I still can’t gridlines at up. I see the gridline only at below of labels.

Example: https://asteroid.vsevjednom.cz/