A heat dome is expected to bring unusually high temperatures to parts of Europe in early September, with some areas in southern Europe and the Mediterranean potentially reaching up to 40°C. This phenomenon occurs when a large area of high pressure traps warm air, creating a dome-like structure that prevents cooler air from moving in. The current heat dome is forming as warm air from North Africa is being pushed northward by high-pressure systems, affecting countries like France, Spain, and Italy. In the coming days, temperatures in low-lying valleys and coastal regions of Spain and Italy could reach between 38°C and 42°C. Weather services in Spain and France have issued warnings about a higher risk of wildfires due to the dry and hot conditions. In the UK, temperatures are expected to rise to around 26°C this weekend, but this heat is not expected to last long. Cooler weather is forecast to arrive early next week, with temperatures falling below 20°C. The UK’s Met Office has predicted that the second half of September will be more unsettled, with longer periods of rain, especially in northern and western regions. The five-day forecast shows early morning clearing in the southeast, with sunny spells and scattered showers across much of the country. Heavier rain is expected in Scotland, while showers will affect northern and northwestern areas tonight. The rest of the country is likely to remain mostly dry. Saturday is expected to be mostly dry with sunny spells, although some showers may affect the northwest. By Sunday, rain is predicted to move southeast, with heavier showers in western Scotland. Temperatures will remain warm on Sunday before cooling down in the following days. This pattern of heat followed by cooler, wetter weather is typical for late summer in the UK, as the influence of the Atlantic starts to increase. The changing weather conditions highlight the variability of the region’s climate during this time of year.