Weather
When we talk about the weather, we're talking about if it is raining, or hot or cold. Some things you would say about the weather are:
               > The weather has been really bad this week. It's been raining every day.
               > The football game was canceled because of bad weather
Whether
The word whether is used to show a choice between multiple things. There are many different ways to use this word:
               > Ask Tim whether he would like to go to the movies. 
                  (In this case "or not" is implied, not stated directly)
               > Do you know whether Tim has gone home or if he is still in class?
               > We will play our football match whether it rains or shines

 



 
