UK weather maps show exactly when temperatures will fall by 10°C as the heatwave endsA noticeable shift in the weather pattern is taking place this week as fresher air gradually spreads across the UK. Much of southern and central England should remain dry, with the best of the sunshine developing during the afternoon. Temperatures will also begin to fall back closer to average levels for the time of year, reaching around 25°C in the south and nearer 20°C across northern areas. A much fresher day is expected on Wednesday, with temperatures reaching around 25°C in the south and closer to 20C across northern parts of the UK. Current indications suggest the weather will remain rather mixed into the weekend, with conditions continuing to vary considerably across the country.