Forecasters predict cooler conditions for next week.
Forecasters are predicting record breaking temperatures in some parts of the UK today.
The record, of 35-point-6 degrees Celsius, was set in 1976.
It's thought Wales could see highs of 30 degrees.
Forecasters say eastern parts will see the sunniest and hottest conditions while it'll be cloudier in west Wales.
Europe is still experiencing extreme heat with southern France seeing a record 45.9 degrees yesterday.