By Bradley Jolly A striking new weather map shows the stark difference in conditions northern parts of the UK will experience next week to those in the south. Temperatures will fall below average across southern regions, including Greater London, in the coming days – and rainfall will sweep in from the continent. But the Met Office’s graphic shows it’ll be warmer than usual across northern parts, particularly regions across northwest Scotland, northwest England and Northern Ireland, and chances of rain will be slim. Speaking in the Met Office’s regular forecast videos, meteorologist Annie Shut…