Plant a window herb garden so you can cook with delicious fresh ingredients! 

Learn how to make jam 
Have a family slumber party, everyone sleeps in the living room
Play hopscotch
Fly a kite (make a kite)
Draw pictures, start a family sketch diary
Bake cookies or bread (give to neighbors or grandparents)
Make watercolor paintings, store for later use as birthday cards
Make homemade lemonade or sweet tea and tell stories (old ones, new ones, scary ones, maybe dress up like a character?)