Ah, rain comes in a lot? You could probably make a cheap awning over the window(s) outside to keep the water out.

I just picked up a 20" Lasko B20570 from the grand Walmart (no one else had it in stock) for $30. It's just the black/silver version of the Lasko 3755. It has a thermostat on it and weather protection for window use, but you have to guess the temp since it's labeled with the less->more graph instead of numbers.
http://www.walmart.com/ip/Lasko-Weather-Shield-Select-20-Box-Fan-with-Thermostat-Black/42388502 I just hung it up in the window with some hanger strap and wire that I had laying around, lol. Supposed to get bad thunderstorms soon, so I'll see how it goes. Shouldn't get much rain coming in with the roof awning, but who knows.
I just noticed from your pictures that we have the exact same carbon monoxide detector.

Yeah, I've seen those nifty cube mounting brackets, but that's not really for me either. Would be $300 for all 15 of my Cubes, plus having to drastically change my setup, run more wiring, etc. I have 1 big window that could actually fit all 15, but like you said, easy pickings for thieves. Not to mention that the cats would be all over them. "Weee fun to climb on and watch da birdies!"
