The Cabinet Office says the move is "by mutual agreement" but it follows months of negative media reports about his performance.
The plans are subject to a 12-week public consultation which starts on Friday.
This weekend should see the weather turn markedly colder, as Helen Willetts explains.
Rain plus the political environment is creating a "powerful psychological need for escape", travel agents say.
School leaders welcome the "greater clarity" on how to handle the polarising issue for parents and pupils.