Weather in MonBre is detected by region. Since the world of MonBre reflects our real-world time and seasons, it will be hotter in our August than it is in our February. This is because it's awesome and not confusing. Temperatures go up and the weather realistically changes. (it won't severe thunderstorm and then the next day be bright and sunny)

Battle Effects

When you go out to explore, the weather can sometimes affect the battle. This won't be implemented until MonBre 2.0 is released, but things like rain making the battlefield slippery, and the sun empowering Ents (tree creatures) will be in. Also in severe thunderstorms or hail, barns can take damage.