Google Spreadsheets to webpage. Need to Read temperature/humidity data from up to 8 Google Spreadsheets specified cells, and display it in existing Landing Page also need to add local weather and other info

Need to add to existing Landing page feature to display data from up to 8 different Google Spreadsheets cells, without refreshing webpage (Ajax) also need to add weather for specified location, also 5 days forecast, and few more features that will be discussed in private.
Attention- NO FRAMEWORKS NEED TO BE USED- ONLY PHP +JAVASCRIPT