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You know what's weird? Weather apps will show a 70% chance of rain. But when you look at the hourly predictions, there is never an hour with more than a 25-30% chance of rain.
Imma write my congressman.
As mentioned by RW, things do change rapidly, and with it, the hourly. Then it takes them a while to update the daily. I've noticed this. The daily tends to trail behind the hourly.
Also, I think it helps to think of the hourly forecast as a coin flip. For example, if there is a 50% chance of rain every hour for five hours, that's five coin flips, and chances are pretty good that one of them is going to hit. Hence, the daily will show something like 90%. At least it should. But I don't think these meteorologists have quite figured out the math yet.


