Many people, young and old, are taking in the outdoor festivities at the Weyburn Wheat Festival this weekend, but the high heat can pose a threat.

While young and old are most vulnerable to the heat, everyone spending time outdoors is at risk during a heat wave. Health concerns can range from dehydration, heat exhaustion and heat stroke.

Chief Medical Officer Dr. Lanre Medu with Saskatchewan Health Authority said heat stroke is the final stage of heat-related illness and can be very serious, even fatal. He explained that a person experiencing heat stroke will have dry skin as they have stopped sweating. They will also have a body temperature in excess of 40 degrees Celsius, and there may be vomiting, weakness and confusion.

"If you find somebody who seems to have those symptoms and is really hot to the touch and you feel that they have dry skin, that individual is most likely not in a position to call for medical help themselves. It would be the responsibility of persons there to call for help," explained Medu.

People aren't the only ones at risk of heat stroke. Animals are vulnerable too.

Pam Arndt-Schick of the Weyburn Humane Society said pet owners need to watch for signs of heatstroke in their pets. Heavy panting, glazed eyes, rapid heartbeat, trouble breathing and even a purple tongue are all signs of heat stroke, which could lead to seizures, coma, and death.

She said the best way to keep pets safe is indoors with air conditioning, if possible, and plenty of water. As for pets who are outdoors, she had more advice.

"Make sure that they have plenty of shade and a great supply of water," said Arndt-Schick.

The forecast today is calling for a high of 39 degrees with the humidity making it feel like 42. Check out the full forecast and heat warning HERE.

Check out more photos from the Weyburn Wheat Festival HERE.