During the weekend, a gradual increase in temperature will be remarkable. For Sunday, England and Wales will see maximums from 16 to 21c, just in time for the marathons of London and Manchester, while Scotland and Northern Ireland will remain cooler and more disturbed.
It is Monday that heat begins to be built more widely, and then temperatures will increase day by day. The peak of the warm spell will be Wednesday and Thursday.
The most likely areas of experiencing the warmest climate include the center of southern England to the west of London, such as Oxfordshire and Hampshire, and in Midlands.
