that is way to special to add to an app. But you could easily open two web browsers next to each other and get your side by side view.
Or if you want them all in a single webpage, write something like this and save it as myweather.html. Just double click it and you’ll get three weatherstations.
<!DOCTYPE html>
<head>
<title>Weather</title>
</head>
<body>
<iframe align="top" src="https://tempestwx.com/station/32943/grid" marginwidth="0" scrolling="yes" allowtransparency="yes" height="1000" style="width:30%;">
</iframe>
<iframe align="top" src="https://tempestwx.com/station/2176/grid" marginwidth="0" scrolling="yes" allowtransparency="yes" height="1000" style="width:30%;">
</iframe>
<iframe align="top" src="https://tempestwx.com/station/32714/grid" marginwidth="0" scrolling="yes" allowtransparency="yes" height="1000" style="width:30%;">
</iframe>
</body>
</html>
It will look something like this:
