Britain is preparing for a major heatwave, with forecasts predicting temperatures to soar into the mid-30s Celsius on June 20. Weather maps indicate that at least 17 areas in southern and eastern England will exceed 30°C, with some regions possibly reaching 34°C. The latest forecast from Netweather shows a widespread heat surge, particularly affecting southern England, where temperatures are expected to range from 31°C to 34°C. The Midlands will also experience unusually hot conditions, with Birmingham, Leicester, Nottingham, and Lincolnshire expecting temperatures around 30°C to 31°C. Northern England is forecasted to remain warmer than usual, with temperatures in the high 20s, while Wales will see readings between 25°C and 28°C. Scotland and Northern Ireland are expected to be cooler, with highs in the low to mid-20s. The Met Office has noted an increased likelihood of warmer-than-average conditions continuing through the summer, with the potential for multiple heatwaves across the UK and mainland Europe.