Thank you Wim, thats sorted the refresh times, i have no issues with my server and refresh times, for y clients at add them to a white list that prevents them from being affected by the firewall and cphulk, i/they could use 1 seconds (if wanted) and we wouldnt be affected. But yes, many providers do not like this but this is the benefit of having your own server, you can set it to how you like 
Re the temp, all the browser return the same issue, thats FF, Chrome, IE and Edge
Re the dark sky side of things, i have just checked the api and the code is totally different to what it was when i used it for the previous script, very strange, i have updated it to the new api code and now awaiting any change, all the other blocks appear ok…
I have just clicked on the Nearby link and that opens the METAR, i have changed the airport in the settings and just double checked yet its still showing your default METAR (EBBR Brussels) perhaps ths has not cached yet?