A mini-heatwave is expected to bring bright sunshine and warmer temperatures to Britain next week, with the south of the country set to see highs of 18C. The warmer weather is caused by an area of high pressure that is moving towards the UK from Friday, May 3. Temperatures in the south and east of England could hover between 18 and 22C for several days, potentially making the south coast feel like the Costa del Sol. However, a divided weather picture is expected in the immediate future, with rain and even transient snow possible in some parts of the UK this weekend.