Oh, there is no accurate weather foecast for that period. You need to pay attention to it the day before you go to Shanghai. Well, the usual temperature of that period in Shanghai is about 9-16℃. It is cool and you need to take warm clothing like sweater and jacket. Look at Shanghai Weather(https://www.travelchinaguide.com/climate/shanghai.htm) , you will know more about the climate in Shanghai during that period.
You can take the Meglev fast train to Longyang road and trnafer subway line 2 to East Nanjing Road. Go across Zhapulu Qiao and turn right, you will get to the hotel.