A HEATWAVE will see temperatures peak at about 32°C later this week in Wiltshire – and it comes with a health warning.

The county will swelter in 30-plus degree heat from tomorrow until it begins to cool down on Friday, with Thursday set to be the hottest day.

Forecasters are predicting temperatures of up to 32°C, before dropping off towards the weekend.

Salisbury Journal: Health officials in Wiltshire offer heatwave advice

The highest recorded temperature in July is 36.7C, on the first day of the month in 2015 at Heathrow.

And there is a chance that could be topped in some parts in and around London.

Ruth May, chief nursing officer for England, said people should take care as temperatures rise, while Asthma UK urged sufferers to keep up their medication.

Dr Andy Whittamore, clinical lead at Asthma UK and a practising GP, said a ‘toxic cocktail’ of hot humid weather and rising pollen levels this week could be ‘extremely hazardous’ for asthma sufferers and could trigger deadly asthma attacks.

Salisbury Journal: Stop those itchy eyes and get the drop on hay fever

He said: "Hot air and hay fever can cause people's airways to narrow, leaving them struggling to breathe, with symptoms like coughing, wheezing, a tight chest and breathlessness.

"Hot weather can also increase the amount of pollutants, pollen and mould in the air which can trigger asthma symptoms.

"If you are worried about the weather or hay fever affecting your asthma, make sure you take your hay fever medicines, keep taking your regular preventer as prescribed by your doctor and carry your blue reliever inhaler at all times.”

HOW HOT WILL IT GET?

Tuesday will see temperatures exceed 31C, and after a maximum of 30C on Wednesday, Thursday sees the peak of the heatwave with some forecasters predicting 32 or even 33C.

By the weekend it will feel cooler, with a maximum of 23C in Wiltshire.