Hot, Hotter - Hottest?

It looks like today is going to be the hottest day (102 degrees) in Britain since records began. They say people could cook on the Underground! And here am I, stuck at a computer, with the one recalcitrant pupil left in school. It's my fault he can't go out, of course, as I broke the news to him that he had a medical mid-morning.

Better not look at any pictures of Vincent today...