The weather idea is down the road after u have a much firmer grasp on all this stuff, but yeah that would come from the internet, possibly an RSS feed. Would have to pick up an Ethernet shield for that.
That will be interesting to see!
I grabbed the pH stamp from Atlas Scientific and a probe from eBay, I imagine I can plug in the sketch they provide.
Plugging in the code is the easy part; making it play nice with everything else is the hard part