Earlier today Environment Canada issued a heat alert, and now Niagara Region Public Health has too.
NRPH is notifying residents of excessive heat, as the temperatures are expected to reach 31°C with the humidex approaching 40°C.
To read more about excessive heat, click here.
If you're looking to cool off on this hot day, only four Niagara beaches have been listed as unsafe for swimming.
Lakeside Beach in St. Catharines, Humberstone Centennial Park Beach in Port Colborne, Nelles Beach in Grimsby, and Charles Daley Park East in Lincoln have all listed unsafe for swimming today.
A beach is listed as unsafe when tests show high levels of e.coli, or because of floating debris, oil, excessive weed growth, bad odours and general turbidity.