Witnesses have described the moments a ferocious storm struck parts of the region, causing disruption to transport and damage to properties.
One home owner in Essex whose house was damaged, said it was like"bowling balls hitting the roof of her house."
Click above to watch Serena Sandhu's report.
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There'll be some dense patches of mist and fog about first thing this morning but it will clear later. Then, a cloudy but mostly dry day.
It will be a bright start in places but the cloud will thicken from the north during the afternoon and there'll be a few spots of rain.
Students at the University of Cambridge have raised money for charity by producing their own naked calendar.