Thank you all for your kind replies.
I once again followed Ken's instructions on how to properly setup Weather-Display with all the bunch of checkboxes, switches and times. After that tutorial the ghost-numbers disappeared.
By the way: I use a Synology DS723's Webstation for the saratoga templates and scripts and it sorted out to be quite useful after many strugles. I like Synology's possibilities tu use different Versions of php. That opens up the possibility to use nice older programs like WU-Graphs 1.8.0.
Despite many concerns I chose cloudflared Tunnels to proxy the Websites. It is not easy to manage, but can be done experimenting with the cach controls so realtime data can be made available withi reasonable response times.
Best regards from Jachen (
https://meteowiden.com) to be finished yet. Older versions (php 7.4) [ You are not allowed to view attachments ] not online yet.