Saturday will have a foggy start with isolated heavy thundery showers in places, these will clear with warm sunny spells developing later on. Sunday and Monday will remain dry with sunny periods although it will feel slightly fresher than recent days as winds increase and become more northerly.
Light easterly winds will continue to import polluted air into the UK from continental Europe that will combine with local emitted pollutants and lead to widespread 'moderate' particulate pollution occurring across London and the south east again during Saturday.
Strengthening northerly winds will bring in cleaner air that will aid in the dispersion of all pollutants and particulate levels are expected to reduce overnight into Sunday.
Air pollution is expected to remain ‘low’ throughout the forecast period for the following pollutants: