1) When summer comes I'm going to visit my granny.
2) When the weather changes I'm going to change my clothes to those which going to fit the weather.
3) If it rains I'm going to stay home.
4) If it doesn't rain I'm going to go outside.
5) If it snows I'm going to go skiing.
6) If it doesn't snow I'm going to go outside and play with my friends.