Don't worry on the normal climate of Strangervillie it won't snow there. The weather machine don't work when story mode is active because the story creates its own weather that is too weird for the weather machine to change, so if you want snow and normal weather in strangervillie you will have to complete the story. I did the weather machine overide for snow in Strangervillie just hoping to see sunsnow and I got surpised, you get heavy snow and it actually sticks to the ground everywhere and Strangervillie does look good in snow. A lot better than Del Sol Valley and if you ever get tired of the snow there you can start the story again.
