http://londonair.org.uk/forecast Air pollution forecasts for London from Imperial College London hourly 1 This forecast is intended to provide information on expected pollution levels in areas of significant public exposure. It may not apply in very specific locations close to unusually strong or short-lived local sources of pollution. http://londonair.org.uk/forecast High pressure will remain dominant throughout the forecast period. Conditions will be partly cloudy, with sunny spells and the possibility of occasional, isolated light showers. Mist and fog may develop overnight and persist into the following day before gradually clearing to reveal brighter spells. Winds will remain light, with temperatures close to average.<br/><br/>Air arriving from western Europe will have travelled at high altitude before descending over Belgium and moving into London.<br/><br/>These calm conditions, combined with continental air and additional locally generated particulates from Guy Fawkes and Diwali bonfires and fireworks, may lead to increased PM10 and PM2.5 concentrations in some areas, particularly during the evening and overnight period. 'Moderate' particulate pollution levels are therefore possible. Higher particulate levels may be experienced locally near celebration events, although such levels are expected to be short-lived.<br/><br/>Air pollution is forecast to remain 'Low' for the following pollutants.<br/><br/>Nitrogen Dioxide<br/>Ozone<br/>Sulphur Dioxide<br/><br/><br/><br/> Fri, 6 Nov 2026 11:48:18 GMT http://londonair.org.uk/forecast/55794 http://londonair.org.uk/forecast High pressure will remain dominant throughout the forecast period. Conditions will be partly cloudy, with sunny spells and the possibility of occasional, isolated light showers. Mist and fog may develop overnight and persist into the following day before gradually clearing to reveal brighter spells. Winds will remain light, with temperatures close to average.<br/><br/>Air arriving from western Europe will have travelled at high altitude before descending over Belgium and moving into London.<br/><br/>These calm conditions, combined with continental air and additional locally generated particulates from Guy Fawkes and Diwali bonfires and fireworks, may lead to increased PM10 and PM2.5 concentrations in some areas, particularly during the evening and overnight period. 'Moderate' particulate pollution levels are therefore possible. Higher particulate levels may be experienced locally near celebration events, although such levels are expected to be short-lived.<br/><br/>Air pollution is forecast to remain 'Low' for the following pollutants.<br/><br/>Nitrogen Dioxide<br/>Ozone<br/>Sulphur Dioxide<br/><br/><br/><br/> Fri, 6 Nov 2026 11:48:18 GMT http://londonair.org.uk/forecast/55794