Daytime highs expected to reach low to mid thirties tomorrow and Wednesday.
Environment Canada says temperatures will reach the low to possibly mid thirties tomorrow and Wednesday.
Overnight lows on both days will be in the low 20s, providing little relief from the heat.
Cooler air is expected to arrive by Thursday.
The weather office says hot and humid air is especially risky for young children, senior citizens, pregnant women, people with chronic illnesses and anyone who wroks or exercises outdoors.

NRP Want Help After Horses Hurt
Niagara Families Connected to Doctor
Teenager Hurt in St. Catharines Stabbing
One Driver Arrested of Two Hit and Runs
Unifor and GM reach tentative contract agreement
Marineland ships another three belugas to San Diego
PM Carney says Canada will Meet U.S tariffs “Dollar for Dollar”
Province Investing in Niagara Businesses