Hello!
I live in Pa, this past winter we had some near negative temps. I mean from about say +/-1 deg F to about 90+/- degree F in the summer. I have five cams so far. Two are indoors, three are outdoors. The front cam is by the door and under a roof. It doenst get much weather, some wind maybe but thats it. The second one is on a corner of the house and it gets all kinds of weather. The third is located off the back deck and its exposed.
All I did to the two most exposed ones is made sure that no weather can sneak past any of the openings. I used a cheap piece of plastic from a notebook. That was the deck cam and its a V1. The other cam thats exposed it the pan/tile style. That one was abit more protected. I bought a piece of lexan from lowes. and just cut it to fit where I though it would need the weather to get in. I made a bit of an over hang so if it did drip it would roll of the edge. To attach the lexan I just used hot glue from a glue stick. The one over the front door isnt exposed and its pan/tilt as well. I left it alone. I have had no issues with them. Besides the occasional network drop. I need to take pictures of them so I can post. my thought was to use materials I had at home or were cheap.