FLCN21 CWTO 070945
AIR QUALITY HEALTH INDEX FORECAST FOR ONTARIO ISSUED JOINTLY BY
ENVIRONMENT CANADA AND THE PROVINCE OF ONTARIO AT 6:00 A.M. EDT
THURSDAY 7 MAY 2026 FOR TODAY AND FRIDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 P.M. EDT.

TORONTO
TORONTO DOWNTOWN
TORONTO EAST
TORONTO NORTH
TORONTO WEST
BURLINGTON
OAKVILLE
MISSISSAUGA
BRAMPTON.
TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.
TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.
FRIDAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.
FRIDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.

WINDSOR
WINDSOR DOWNTOWN
WINDSOR WEST.
TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.
TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.
FRIDAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.
FRIDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.

CHATHAM
SARNIA
LONDON
GRAND BEND.
TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.
TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.
FRIDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.
FRIDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.

PORT STANLEY.
TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.
TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.
FRIDAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.
FRIDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.

TIVERTON
OSHAWA
NEWMARKET
PETERBOROUGH.
TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.
TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.
FRIDAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.
FRIDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.

BRANTFORD
KITCHENER
GUELPH
MILTON.
TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.
TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.
FRIDAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.
FRIDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.

ST. CATHARINES
HAMILTON
HAMILTON DOWNTOWN
HAMILTON MOUNTAIN
HAMILTON WEST.
TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.
TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.
FRIDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.
FRIDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.

BARRIE
DORSET
PARRY SOUND
KINGSTON
CORNWALL
OTTAWA
GATINEAU
NORTH BAY
SUDBURY
SAULT STE. MARIE
THUNDER BAY.
TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.
TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.
FRIDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.
FRIDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.

BELLEVILLE.
TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.
TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.
FRIDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK.
FRIDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK.

AIR QUALITY HEALTH INDEX SCALE:
1-3  LOW HEALTH RISK
4-6  MODERATE HEALTH RISK
7-10 HIGH HEALTH RISK
ABOVE 10 VERY HIGH HEALTH RISK

FOR MORE INFORMATION, CONSULT WWW.AIRHEALTH.CA

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