Last week the mercury soared to staggering levels with a new record of 38.7C set in Cambridge University Botanic Garden.
Brits basked in glorious weather conditions throughout the week, with thousands of revellers taking to the seaside, making the most of the sunshine.
But it looks as though the hot weather came at a price, with dried-out rivers and parched land meaning Brits now face their first hosepipe ban since 20012.
Southern Water, which has 2.3 million customers, is set to ask people to pull their garden hoses and impose a ban.
“From Tuesday onwards the rain will set in. From Tuesday to Thursday it will be a mix of sunshine and showers. Some will be heavy and thundery”
The announcement comes despite two weeks worth of rain falling in just 24 hours in parts of the UK.
Five days of thundery showers are expected in the UK this week, with temperatures averaging around the high teens and low 20s.
Met Office meteorologist Craig Snell said: “This week coming up is going to be more changeable than what we just had, with no major hot spells coming up. It is a very different flavour than last week.
“Monday will be the driest day. It will [start] off not too badly for many in England and Wales, with a good amount of sun and dry weather.
“From Tuesday onwards the rain will set in. From Tuesday to Thursday it will be a mix of sunshine and showers. Some will be heavy and thundery.
Last night was a complete washout for Manchester and Kilmarnock, with more rain forecast for today.
Heavy rain wreaked havoc in Manchester where Altrincham, Didsbury, Rochdale and Poynton were all at immediate risk of flooding.
The Met Office has issued a yellow weather warning for thunderstorms across much of the South West and Wales for Tuesday with the risk of floods, lightning strikes, hail and strong winds.
There were 11 flood warnings in place early on Monday for the Greater Manchester region after torrential rain.