Unseasonably high temperatures are forecast to sweep across much of England and Wales this week, with conditions expected to meet official heatwave criteria by midweek.
Warm air is building over much of the UK due to high pressure and a southerly airflow. On Monday, central and southern England saw temperatures climb above 30°C, with patchy rain and humid conditions reported across several region. London remained warm but did not reach the anticipated mid-30s, though further rises are still expected on Tuesday. These levels meet the Met Office's official heatwave criteria, which requires threshold temperatures to be exceeded for three consecutive days.
