Little guy leapt into my window, such strange colouring. ID?

[Hellsrage]

Welcome to FF!
I went ahead and searched for a site that list the native amphibians of Australia and found this: Australian Frogs A-Z List

From that I found a photo of a frog that looks similar to yours : Peron's Tree Frog (Litoria peroni)

With that said I could be 100% wrong though, I'm just going off of what I found on that site and comparing it with your pic.

[Targoloid]

Hahaha, Thanks heaps Cody! I think you're right.

There's a storm rolling in as I type this so hopefully I'll be able to find another one and get some better shots.

[Hellsrage]

Hahaha, Thanks heaps Cody! I think you're right.

There's a storm rolling in as I type this so hopefully I'll be able to find another one and get some better shots.

No problem.

Hope you get some nice photos!