Thanks for your help igor_chubin and teddyh! According to The Fine Manual: watch --color (-c for short) , should render color correctly, eg. watch --colo

Thanks for your help igor_chubin and teddyh! According to The Fine Manual: watch --color (-c for short) , should render color correctly, eg. watch --color ls --color but watch --color curl -s v2.wttr.in doesn't quite play ball. In the end I went with something like your solution. I didn't need to put the sleep 60 as the first operation though. #!/bin/bash while true; do clear curl -s v2.wttr.in sleep 100 done ^C breaks out of this loop just fine on my system.