The cooler and wetter weather arrives just as the UK had its hottest day EVER.
A scorching temperature of 38.7C was recorded in Cambridge University Botanic Garden on Thursday.
The highest temperature on record for the UK recorded before the recent hot spell of weather was 38.5C, recorded in Faversham in August 2003.
However Merseyside has been warned to expect travel disruption and flooding this weekend.
Two days of yellow severe weather warnings for heavy rain have been issued throughout this weekend.
Where flooding occurs, there is a slight chance of delays or cancellations to train and bus services.
Spray and flooding could lead to difficult driving conditions and some road closures.
There is a small chance that homes and businesses could be flooded, causing damage to some buildings.
A forecaster at the Met Offie said: “An area of rain is expected to move slowly and erratically northwestwards across parts of the UK on Saturday and Sunday, and while some places within the warning area may see very little others could see several hours of heavy rain.
“Accumulations of 40-60mm are possible, with perhaps as much as 80-100mm in places, especially over high ground.”