Right click and use "Save As" to save the worksheet to your own computer
or print right from your browser.

I've thought of a few different ways these cards can be used:
Track your local weather for several days in a row.
Record the forecast for a few days and see how close the actual weather conditions turn out to be.
Record the weather conditions in several different towns and compare them.
Do it backwards - choose a weather condition and use a weather website to search for a town with that weather.