I live in the Chicago area and have never seen RV storage (outdoors mostly) in this area for less than $45/month. The $45/month facility was in an urban area with a "gate" that apparently hasn't worked in years. So, we currently store ours at an outdoor storage facility for $65/month, but we use it regularly. Then we store it indoors in the winter for the equivalent of $60/month at the Winnebago county fairgrounds. You might check craigslist for people who have pole barn space for rent, but that will still be more than $25/month, and you'll have to check regularly for mice. Good luck.