If you're concerned about your symptoms getting worse in the heat, we've prepared some information to help.
Temperatures this high could pose some significant health risks – particularly for the very young, the elderly and those with long-term health conditions such as Parkinson's.
Tips for coping with the heat
Make sure you drink plenty of water and fruit juice and avoid tea, coffee and alcohol.
Try to avoid any strenuous activity. If you can, stay indoors between 11am and 3pm when the sun is at its hottest. If you do go out, make sure you stay in the shade where possible.
Stock up on supplies
People with Parkinson's may find their symptoms worsen in the heat. Try to make sure you have enough medication and plenty of food and drink at home, so you don't need to go out when the sun is at its hottest.
Keep your cool
Try to stay cool by wearing loose cotton clothing and by splashing cold water on your face or the back of your neck. Try and identify which is the coolest room in the house, so you can stay there during the heat of the day.
Your medication will continue to work in hot weather and will be absorbed as normal. But remember to drink plenty of water to stay hydrated and help you swallow your medication.
Store your Parkinson’s drugs somewhere cool and dry, such as a closed cupboard.
Neupro (rotigotine) patch
Make sure that the patch is kept out of direct sunlight. If you're wearing it outside it's recommended to cover the patch with loose clothing and to avoid prolonged exposure to the heat. You must store Neupro below 25 degrees celsius.
If you feel unwell
If you start to feel unwell, make sure you drink water or fruit juice, and try to find somewhere cool to rest. If possible, have a wash to cool down.
If you experience symptoms such as breathlessness, chest pain, confusion, dizziness, weakness or any cramps start to get worse or don't go away, you may be suffering from heat exhaustion.
There's no need to panic but you will need to seek medical help immediately.
NHS choices has more information and advice on how to cope with the heat when there's a heatwave alert.
You can also contact our free and confidential helpline 0808 800 0303.