I will be travelling to Hangzhou end August'11. How will the weather be & the best food in town.

August is the rainy season with frequent showers. It is also hot with a high temperature of about 25~32C. In early August, typhoons often occur bringing heavy rain. During this period, you should bring an umbrella with you. Even if it does not rain, an umbrella is also a nice prop for photos you take at the West Lake.
There are several dishes that visitors won't want to miss, they are West Lake Fish in Vinegar Gravy, Dongpo Pork, Beggar's Chicken and Fried Shrimps with Long Jing Tea Leaves.