The thing is that when they say 100% chance of rain that means somewhere in the area at some point it's going to rain. But it doesn't mean it will rain all day everywhere. Last night Accuweather was reporting on the hourly that the rain would like be in the afternoon. Even then it may not rain where you are, unless there's a storm blowing through the whole area.
Sorry you didn't come out but I know you have to be careful with your tires