Professor Penelope Endersby told BBC Radio 4’s Today programme: “We think today may well be the UK’s hottest day on record, with the hottest temperatures in the South East, but actually the hottest temperatures we expect tomorrow, and those temperatures will be further north as this warm air pushes north. So tomorrow we really see the highest chance of 40 degrees and temperatures above that. “Even maybe above that… 41 is not out of the cards. We even have 43 in the model, but hopefully it won’t be that high.” He added that such extreme temperatures are not expected after Tuesday, but that the Met Office will then monitor the possibility of drought in the coming months. “Well, we certainly don’t see those very hot temperatures persisting past Tuesday, so we’re expecting a big drop in temperatures, mercifully, overnight into Wednesday – down 10 or 12 degrees from the previous days,” he said. he said. “We still see warmer than average in our outlook for three months and very dry as well, and our focus is, after we’ve been through these two days, on the drought and when we might see rain, and we don’t see any significant rain coming ».