OK. I have:
8330m, OS 4.5.0.175. I removed, then reinstalled Weatherbug Direct app version 0.9.6.6, I installed from the
second link I provided above, rather than BB App World. And, it installed fine. It's running fine.
Gecko: I recommend the link I posted if you are still having trouble with the app. It has several versions listed for different OS versions.
The first link posted above:
Weatherbug website, where you can choose free or not free app.
The second link:
Weatherbug Direct app, version 0.9.6.6 from softpedia.com (which is free, and designed for BB OS 4.1 and up.)
I'm
not saying the one on BB AppWorld doesn't work. I didn't even look. I'm just going off the OP's post, and finding alternatives.