Weather apps seem to be the new todo list or note-taking apps. There seems to be a huge abundance of them, and all of them are "unique" in some respect.
Kudos for making it free, but until it's clear why that app is considerably better than the existing free app I have on my phone built by Apple, I'm not sure I'm going to bother. Gradients are nice, but Apple's built-in app gives me a visual indication of weather already.
And I'm not being mean: I think it's great people want to ship utility apps, I just think the unique value has to be pretty clear and obvious from the very first words I read, and it has to be pretty overwhelming.
Good luck with it, and your future apps!