The old Loughor Viaduct has been replaced and work is focusing on laying two tracks through Gowerton for the start of services on Monday.
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Breezy overnight. It will become fairly cloudy as the night progresses.
It should turn cloudier through the early hours with some patchy drizzle and some hill fog too.
It will be a breezy day with variable amounts of cloud and some bright or sunny spells.