It looks like it could be an issue with the OpenSprinkler server running the weather.py scripts.
I sniffed on my LAN to see what my OS was trying to do and captured the URL it uses to get the latest weather update, then tried accessing that directly in a browser (which has worked previously) but am getting a “502 Bad Gateway” error from a box running “nginx/1.12.1“. This ties with the same error I was seeing int he sniffed traffic from my OS, even on the outside interface of my firewall so I figured it was not an issue on my side…
Hopefully they’ll sort it out soon…