No, you can't use it to track weather conditions on the various locations in the Star Wars movies, but you can put in the names of a number of real-life cities and get their weather compared to those locations.
It's only displayed in Celsius, so if you're like me in that you're used to Fahrenheit, you'll need to convert it somehow. Also, I'm not sure how accurate the temperature is. I just checked it vs. weather.com, and that has it a couple of degrees warmer than the Star Wars weather thing.
It's getting Hoth in here, so let's put on all our clothes...
Oh, right. The link.

