To ask "what is the weather like today?" you would say "che tempo fa oggi?" As "il tempo" means "the weather".
Read below to find some common expressions used to speak about the weather!
The green box shows you how to speak about the weather in the future; "sarà" means "it will be" and "ci sarà" means "there will be"!
If in doubt, the third picture on the top row illustrates the word "windy".
So...How would you say "it will be windy?