It will be very bright and loud ion London this weekend. The sky will light up in many places across the city, here is a list of the biggest shows:
http://www.timeout.com/…/bonfire-night-fireworks-displays-i…
It might be difficult to get tickets (for example Alexandra Palace is sold-out) but there always might be a spot somewhere around with a nice view. If you want to see the fireworks but do not have the ticket, these option is worth investigating 
😉
Enjoy,