The Gatwick Express is hoping to run a normal timetable between London Victoria and Gatwick Airport.
There are not engineering works due at the weekend but users are being warned that congestion on the motorways around London may lead to some delays as people try to visit the capital for the Jubilee pageant.
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A wild night is in store for anyone who wants to join the animals at Marwell Zoo for a sunset party.
Tuesday morning's forecast for the east of the region
Tuesday morning's forecast for the west of the region