As the jet stream dips southwards, colder air will bring a drop in temperatures on Sunday. The jet stream is then expected to run across northern parts this week, bringing more changeable weather, whilst southern areas should be drier and warmer. | Met Office

Here's a look at how the jet stream will play a pivotal role in the weather we can expect this week | Met Office

A strong #jetstream will feed eastwards across the North Atlantic this week. This should speed up the arrival time of trans-Atlantic flights to UK airports. For our weather, high pressure will persist towards the south of the UK, but a strong jet stream will feed low pressure towards the north west. | Met Office