Well, I just officially tested the service. According to FlightCaster my flight is 85% chance of being on-time, but after getting to the airport my flight is d

Well, I just officially tested the service. According to FlightCaster my flight is 85% chance of being on-time, but after getting to the airport my flight is delayed. I am waiting at the gate right now, and no reasons were given by the airline. I am sure it's not weather related since it's SF to LA... and the site still says it will be on-time. How frequently do you update the forecasts?