wow, that's a pretty big project to take on. Version 1 looks really nice congratulations. A couple of minor suggestions How about a mouse over tool tip on the hours that are red / orange to say why at a glance Does a 1% chance of 0.01mm of rain need to be counted as precipitation? living in the UK I'd take those odds any day Thanks for putting it together Tyr ps In my opinion apps of web pages are overrated, some developers seem to sink large amounts of unnecessary resources into maintaining apps (think of the frequency of new android / IOS releases), when a well scaling well designed web page with a thought out mobile layout would do the job just as well for much lower maintenance costs.