According to U.C.A.R

Weather is the mix of events that happen each day in our atmosphere. Weather is different in different parts of the world and changes over minutes, hours, days and weeks. Most weather happens in the troposphere, the part of Earth’s atmosphere that is closest to the ground.

As global climate changes, weather patterns are expected to change as well. While it is impossible to say whether a particular day’s weather was affected by climate change, it is possible to predict how patterns might change.