Just an observation about turning off certain weather for your save files, such as rain, thunderstorms, snow, blizzard etc. I'm not talking about the effects on your Sim you can turn on or off, the actual weather itself. I turned off rain and thunderstorms completely in one of my saves just because I was tired of it raining ALL the time. My sims needed a break. :)
Anyway, one day the forecast was for mysterious weather. Despite having rain and thunderstorms turned off in settings, I still got rain and thunderstorms that day. So, either this is a bug/glitch or 'mysterious' weather overrides your settings by design and you can get anything anyway.
The reason I mention this is for those who might think their Sims are safe from lightening, getting wet without an umbrella or even freezing in a blizzard because they turned off these types of weather, it can still happen. I imagine it's rare in this case, but thought I'd mention it anyway.
Happy Simming! <3