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.

Niagara Economy Doing Well: Analyst
Gov't Spending on Niagara Schools
Mother/Daughter Arrested in Drug Bust
Homicide Unit Investigating St. Catharines Death
Fort Erie Man Charged After Shooting
HART Hub Making Progress: Officials
MPP Not Happy Injection Site Closing
Man Charged for Assault on Teens