A heat warning is still in effect for the county of Oxford.
WOODSTOCK - A heat warning remains in effect today for Oxford County and most of Ontario.
That means an extended period of heat above 32 degrees.
Peter Heywood, Manager of Health Protection for Oxford County, says heat conditions can be dangerous.
He says there are some precautions the public should take.
"People with breathing conditions, heart conditions, outdoor workers, and sports enthusiasts need to ensure they keep hydrated, wear sunscreen, wear a hat, and take a period of breaks."
Heywood says heatstroke is a medical emergency and requires calling 911.
He explains what the symptoms of heatstroke are.
"A person who is having symptoms of heatstroke may experience dizziness, fainting, nausea, vomiting, headaches, rapid breathing and heartbeat."
Heywood says the most affected groups include children, elderly people, and outdoor workers.
These groups should take extra steps to protect themselves.
"It is very important that they drink plenty of cool liquids before they start to feel thirsty. Remind yourself to drink water by leaving a glass by the sink or using a natural fruit juice as well."
It is expected to reach 40 degrees with the humidex.
Heywood says they advise people to reduce outdoor activity when the temperature is this high.