How to Change Weather
Change the system time on your Switch to change the weather. This will not harm your save. Go to your Switch system settings and scroll down to the “System” tab at the bottom. Then, select “Date and Time” and change the time zone. You do not have to close your game to do this. Try to adjust it at least 2-3 hours to change the weather. However, be careful not to move it too far or you will make it day night/night day.