NewsUK NewsHeatwaveNew weather maps show Britain is set for another blast of summer warmth within days, with forecasters predicting temperatures climbing to 26C across parts of southern and eastern England20:24, 01 Jun 2026Britain is braced for another burst of early summer warmth within days, forecasters say.‌These striking weather maps show temperatures are to climb to 26C across parts of southern and eastern England, with 14 counties poised for the hottest conditions. New ECMWF forecast charts show high pressure developing across much of the UK by June 15, delivering largely calm conditions and sunshine to many areas.‌Typically, the mercury rarely exceeds 20C in early June in the UK. However, high pressure lingers outside the UK, having just sent the mercury rocketing in May. Britain logged its hottest-ever day in May, with 35.1C recorded in Kew Gardens, southwest London. June is likely to follow a similar pattern, meteorologists understand.‌The newest maps for June suggest the mildest air will be focused across the South East of England, East Anglia and parts of the Midlands, while Scotland and Northern Ireland remain only a few degrees cooler.WXCharts temperature projections reveal widespread highs of 22C to 24C extending from the Midlands through eastern England. Some spots in the South East of England, including Greater London, could reach 25C or 26C, making them the warmest parts of the country.‌The Met Office's mid-range forecast reads: "Higher pressure and more settled conditions may begin to become more prevalent, especially in the south." Multiple locations across these counties are forecast to hit 24C to 26C, with no or little rain forecast for many parts, reports the Express.14 warmest counties - see fulll listKent‌EssexSuffolkNorfolk‌CambridgeshireHertfordshireBedfordshire‌BuckinghamshireBerkshireSurrey‌East SussexWest SussexHampshireArticle continues belowOxfordshireChoose Daily Mirror as a 'Preferred Source' on Google News for quick access to the news you value.‌HeatwaveWeatherMet Office