The heatwave has triggered a string of thunderstorms across the Anglia region.
One weather station at Somersham in the Cambridgeshire Fens recorded 48 mm of rain in just 7 hours from 2am. The average monthly rainfall for July in the Anglia region is around 50 mm (2 inches)
The storms have brought localised flooding as the rain fell onto hard-baked earth and there has been travel disruption and some power cuts.
The white areas on the rainfall radar chart indicate rainfall rates in excess of 32 mm per hour.
More top news
Four golden Labrador puppies that were dumped over a garden fence in Essex have been rescued by the RSPCA.
2017 will be the year that Britain triggers its exit from the EU and Anglia Late Edition looks at how that will affect the East of England.
A joint investigation will be carried out between the Police and the Maritime and Coastguard agency.