The official Olympic train service will depart from Kent for the first time this morning.
Kent's high speed services are being used to take hundreds of thousands of passengers from St Pancras to the Olympic park.
But for thousands in Kent it means they will lose regular high speed services to London.
Southeastern say they'll put on extra carriages on slower trains to the capital.
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After a dry start, sunshine will become increasingly hazy as cloud thickens, bringing patchy light rain to some parts.
After a dry and bright start across the region, sunshine will become increasingly hazy as cloud thickens.
Showers soon dying out this evening to give a dry night with some long clear spells and light winds.