Re: Can you check weather in other worlds?
Just look for the weather machine in regular build buy. It is always unlocked. I don't have my game running atm, but I believe it is in the activities and skill section of the catalog where the telescope and microscope are. And you could just search for the Seasons pack and you should be able to find it easily.
It only affects the zone where you install it so say, if you put one in the spice district, it only affects that zone. The arts district would have whatever weather is current in that world and would be unaffected. It can be upgraded too so you can even change the season if you want or affect the weather for the entire season. So just place one on a lot somewhere and take a look at what the options are, then you can decide what it is you want to do.
If you use it to change the season, that does impact the entire game. So if it winter and you change the season to summer, it will be summer everywhere. Otherwise, all the other changes are local.
One thing though, if you place one on your home lot and use it to change the weather, the changes won't hold if you travel away and the weather will be whatever is normal for that world. When you return, you will need to change the weather again. For instance, when I play in Brindleton Bay, I always change the seasonal weather to dry so I don't get so much rain and snow. Every time I travel, even to another lot in that world or zone, I have to reset it when I get back home.
Hope this helps.
