Tracking the Weather at your school.
http://www.victoriaweather.ca/
A number of schools in the Victoria area have a weather station on top of their building. Inside the school is a digital display and you can connect with this site for more continuous tracking. I have seen this used to track patterns, create graphs, we have daily weather reporters who announce conditions on our morning announcements, plus so much more. It is great because it is local and the students can connect to that.