About Sunday, there are some different predictions. According to Ferrari it will be a dry race. While some local forecasts says that there will be raining on Sunday morning, also some little showers afternoon. Another forecast from the international sources says there is a %50 chance of rain on Sunday.
The latest rainy race at Hungaroring was in 2006. When Button won his first Grand Prix victory while Alonso crashed because of a pitstop mistake. Hungaroring holds a dull race most of the time, but when it rains, it surprises all.
