- 15 updates
Londoners may have been surprised to find hailstones coming through their open windows last night.
So how on earth have we ended up with ice falling from the sky during a heatwave?
Phoebe Smith from the Met Office explains.
This video, of lightning striking in the capital's skies, was posted on Twitter by @KeithTheGooner.
Despite the scorching temperatures, some of the storms that swept across the capital last night contained large hail stones.
Robbie Collin posted a picture on Twitter of his living room window, which had been smashed during a thunder storm.
He wrote: "Err, wow. A sudden hail shower in SW London has just SMASHED MY LIVING ROOM WINDOW."
Stunning lightning strikes over the Olympic Stadium in east London have been captured on film.
Though slow to start, this video by Ben Anderson shows the magnitude of the storm over the capital this morning.