Writtle near Chelmsford recorded the highest temperature in the UK on Wednesday 16 July with a maximum of 27.9°C (82.2°F).
It is forecast to get much hotter on Thursday and Friday and the Met Office has issued a heat-health alert.
Other highs in the Anglia region on Wednesday 16 July
- 27.3°C in Cavendish, Suffolk
- 26.7°C in Santon Downham, Suffolk
- 26.5°C at Andrewsfield near Braintree, Essex
- 26.2°C in Wattisham, Suffolk
- 26.1°C in Weybourne, Norfolk
- 25.7°C in Cromer, Norfolk