At 4pm on Friday there was “severe” congestion on a number of motorways in England including on the M1, M5, M6, M25 and M56, according to the National Highways website.
These were the scenes at junction 31 of the M6.
The Met Office said most of the UK is set to be dry and bright for the duration of the three-day weekend after weeks of wetter than usual weather for August.
“Knowing when and where congestion will build can help drivers avoid the stress of sitting in traffic.”
The RAC estimated that 16.7 million leisure trips on UK roads were planned for between Friday and Monday.
It added that hopes of good late summer weather could see even more people jumping in their car for a day trip or last-minute break.