How is the weather today in Paris?

Hi all

We are areiving in Paris this week and from the inernet it seems like a mixed weather which says day time temp as high as 30c to as low as 15 c at night. Very confused about what to pack as if it is really not summer then i have to pack all differently for the whole family & definitly i prefer to travel light. If anyone can help with the actual weather there will be really helpful