Hi Browne, which city are you going to arrive in tommorrow? The weather varies greatly in different cities. If you come to Shanghai firstly, the weather is fair at daytime and cloudy at night. Anyway, not bad! If you arrive in Beijing, the daytime is cloudy and may has little rain at night & the next few days. So, it will be somewhat cold especially in the early morning when a long-sleeves coat is needed~
Mice trip!