Parts of the South West have recorded their hottest days ever this week - with records broken in both Cornwall and the Avon area.
There's an amber weather warning in place for most of the UK, with a red warning in place for a smaller portion - including parts of Gloucestershire.
The heat is expected to last until midnight on Tuesday 19 July.
Where is the hottest place in the South West today?
Bude broke the record for the hottest temperature ever recorded in Cornwall when it hit 36C. The previous record of 33.9C was at Ellbridge on June 28, 1976.
In Devon, temperatures hit 33.8C which is still a little below the Devon record of 35.4C.
In Gloucestershire, there were highs of 35.7C, in Winchcombe.
Elsewhere Almondsbury, on the outskirts of Bristol, also broke the record for the Avon area when temperatures reached 35.3C at around 2pm. The previous record was 34.7C, which was recorded at Filton on July 19, 2006.
Overnight things did not cool down much, with the highest temperatures recorded in Lyneham in Wiltshire (23.8C) and Dunkeswell in Devon (23.7C).
What is the previous records for the hottest day in the South West?
Before today, the records for the hottest temperatures ever recorded in the South West was set in Cheltenham in August 1990, when temperatures hit 37.1C.
ITV News West Country's weatherman Charlie Powell expects the current South West record to be broken later today.
Webcams from across the region show people already out and about on beaches and lakes.
The NHS is advising people to avoid going out and is warning against strong physical exertion during the hottest parts of the day.
If you do need to go out between 11am and 3pm, apply sunscreen, wear a hat, walk in the shade and take a drink.