ANSWER:
Weather is the day to day, minute by a minute changing process of the atmosphere of a particular region which includes the speed of winds, temperature, precipitation, air pressure, humidity, cloudiness, etc.
Climate is the standard process of pattern which takes over a long period to get change more than 25-30 years of time and it includes temperature and precipitation of a particular region.
The study of weather knows as the "Meteorology".
The study of Climate know as the "Climatology".