If you want to teach your students about temperature and climate then check out these resources:
Try this application from the BBC, it allows children to find out what it would be like living in different climates and is a great introduction to climate.
For a more scientific approach, looking at how and why these climates exist take this link to the NASA Worldbook. It's a bit wordy but includes all the relevant information.
The World Meteorological Organisation allows you to check the weather forecast for almost anywhere on the Earth.