A special weather statement is in effect.
A warm and humid air mass is expected to settle into southern Ontario.
This is the first warm and humid weather statement for the season.
Environment Canada reminds everyone that these conditions may pose a health risk to adults, infants , young children and those with chronic illnesses.
Everyone is being reminded to drink plenty of water before feeling thirsty, dress in light layers and try to spend a few hours each day in a cool place.
Maximum temperatures will range from 28 to 30 across the regions today and from 29 to 32 Saturday.
Overnight lows will range from 17 to 20 tonight and from 18 to 21 Saturday night.