This is a Tool to get a html that refreshes every 60 seconds for OBS. The HTML file can be bound as a local browser souce file. No additional settings are needed. Optional you can change the color, with a "Filter" called "Color Correction". The Console shows the updates and you can manually seclect the airport with an ICAO Code. If you run the Code, you need to have the C# Libary installed to run it. If you're just using the Release, then you need nothing to install.
List of possible stations: https://tgftp.nws.noaa.gov/data/observations/metar/stations/