Health experts have urged people to take care of themselves and their loved ones as a heatwave takes hold across southern England.
The Met Office predicted temperatures could reach 35 degrees on Thursday, not far off the July record of 36.7C set four years ago.
England’s chief nurse Ruth May said a trip to the hospital can ruin a day of fun in the sun.
“It's really important to take simple precautions like drinking plenty of water, using high-factor sunscreen and remembering to take allergy medication if you need it,” she said.
She has encouraged people to check in on those who “suffer the most” from the heat.
Asthma UK has also warned the 5.4 million UK asthma sufferers to prepare for a “toxic cocktail” of hot weather and rising pollen levels.
Dr Andy Whittamore said the hot air and hay fever can cause people’s airways to narrow, leaving them “struggling to breathe”.
“Hot weather can also increase the amount of pollutants, pollen and mould in the air which can trigger asthma symptoms,” he said.
The Met Office said western Scotland, Northern Ireland and parts of northern England can expect heavy rain while southern England swelters.
The heat is expected to peak on Thursday, however the forecaster said warmer temperatures will last through the weekend.
“It looks most likely that, at least by Saturday, most areas will see a bit of a drop in temperatures,” it said.
“There's still a lot of sunshine around for the weekend and temperatures probably look to be not quite as hot, but with a summery feel staying for the weekend.”