hourly percentage of rain in weather app
In the weather app, the percentage of rain for the day is often less than the percentage of rain indicated for a particular hour of the day. Where I live for example, the chance of rain indicated for the entire day today is 20%, but at noon the chance of rain is Indicated to be 40%, then 70% at 1pm, 70% at 2pm, 60% at 3pm, and so on. Obviously the actual probability that it will rain at 1pm has to be lower than the probability that it will rain at some particular hour of the same day.