Weather is something the state of the atmosphere describing what's hold, cold, windy, sunny etc. most specifically within a daily or perhaps weekly period.
Climate is an average of weather, a pattern. They're similar, but not one of the same. You wouldn't say that the climate of a day was light showers of rain, because it could be sunny, or hailing, or merely cloudy.
I LEARNT THIS WHEN I WAS 10 OR 11!