A large part of the Central Line east beginning at Marble Arch and on the Northern Line north from Camden Town will have shutdowns this weekend.
Metropolitan line from Wembley Park northwest to the end of the line will see disruptions on Sunday.
There are also disruptions on Docklands Light Rail, London Overground and London Tramlink. See map in the above link.
You can also now get updated London transport info on Twitter. Check out this new link and add to your mobile!