If You See a 40% Chance of Rain, This is What it Really Means? What does a 40% chance of rain mean?

2What Does the Percentage of Rain Mean?
According to a viral take on the internet, the percentage of rain doesn’t predict the chances of rain. Instead, it means a certain percentage of the forecasted area will definitely see rain—so if you see a 40% chance, it means 40% of the forecasted area will see rainfall.