If you want to change the weather without using cheats or mods in The Sims 4, then you have come to the right place. You need to place the weather control device first and then use it to change the weather.
Place weather control device
You have to go into the build mode, input “weather control”, and press the enter button on your keyboard. After that, pick and place “Dr June’s weather control device.”
Change the weather
Switch back to the live mode and choose the “Change Current Weather” option. You can choose any weather you want, and your sim will use the machine.
Wait a bit, and a message will appear saying, “The Weather Controller has successfully changed the weather.”
Electrocute shock
If the machine doesn’t work on the first attempt, you must try it again. Sometimes, your sim might get electrocuted. So be careful because if you get shocked when you already gaze, your sim will die.