Pollen count and allergy info for St. Catharines
St. Catharines pollen and allergy report • 07:00, May 14
Index
Low
Tree
Low
Grass
Low
Weed
None
7°
18 km/h
86%Daily allergy forecast
St. Catharines pollen count forecast
Today  19 km/h 11°6° 78% | Friday  19 km/h 18°7° 62% | Saturday  28 km/h17°10° 81% |
Air pollutants
Air quality in St. Catharines today
AQI⁺
Air quality index
23AQI⁺ US
O₃
Ozone
56µg/m³
Learn more about pollen in St. Catharines
Protect yourself from air pollution in St. Catharines
Protect yourself from air pollution in St. Catharines
Monitor the air you breathe
Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.
Medical grade air purifiers
Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.
Powerful, stylish air purifiers
Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.
Download our Air Quality App
Where is the highest pollen level in Ontario?
- Algoma3
- Amherstburg3
- Atikokan3
- Binbrook3
- Bluewater3
- Bonner Lake3
- Brampton3
- Brant3
- Brantford3
- Breslau3
- Cambridge3
- Camlachie3
- Dryden3
- Ear Falls3
- Elliot Lake3
- Englehart3
- Espanola3
- Geraldton3
- Grand Bend3
- Greater Sudbury3
- Greenstone3
- Hanover3
- Hearst3
- Hornepayne3
- Ingersoll3
- Iroquois Falls3
- Kapuskasing3
- Kenora3
- Kincardine3
- Kirkland Lake3
- Kitchener3
- Lambton Shores3
- Larder Lake3
- Little Current3
- London3
- Marathon3
- Neebing3
- Nestor Falls3
- New Hamburg3
- Owen Sound3
- Paris3
- Petrolia3
- Port Stanley3
- Rayside-Balfour3
- Red Lake3
- Sault Ste. Marie3
- Sheguiandah3
- Shelburne3
- Sioux Narrows3
- South Huron3
- St. Thomas3
- Stratford3
- Temiskaming Shores3
- Thessalon3
- Thunder Bay3
- Timmins3
- Tiverton3
- Tobermory3
- Waterloo3
- Windsor3
- Wingham3
- Woodstock3
- Almonte2
- Ancaster2
- Arnprior2
- Barrie2
- Belleville2
- Bells Corners2
- Blyth2
- Bourget2
- Bracebridge2
- Burlington2
- Caledon2
- Carleton Place2
- Casselman2
- Chatham2
- Clarence-Rockland2
- Coldwater2
- Concord2
- Deep River2
- Delaware2
- Dorset2
- East Garafraxa2
- Embrun2
- Erin2
- Gananoque2
- Goderich2
- Gravenhurst2
- Guelph2
- Hamilton2
- Hawkesville2
- Huntsville2
- Huron East2
- Keswick2
- Kingston2
- Mattawa2
- Milton2
- Minden Hills2
- Mississauga2
- Nepean2
- Norfolk County2
- North Bay2
- North Perth2
- Oakville2
- Orangeville2
- Orillia2
- Ottawa2
- Parry Sound2
- Pembroke2
- Petawawa2
- Port Colborne2
- Powassan2
- Prince Edward2
- Renfrew2
- Sarnia2
- Simcoe2
- South River2
- Vaughan2
- Wellington County2
- Wendover2
- Ajax1
- Angus1
- Aylmer1
- Bainsville1
- Bancroft1
- Brockville1
- Cobourg1
- Collingwood1
- Cornwall1
- Deseronto1
- Dorchester1
- East York1
- Egbert1
- Etobicoke1
- Fort Frances1
- Greater Napanee1
- Hawkesbury1
- Innisfil1
- Kasabonika1
- Kenora District1
- Lindsay1
- Markham1
- Midland1
- Morrisburg1
- Napanee Downtown1
- Newmarket1
- Niagara Falls1
- Niagara on the Lake1
- North York1
- Omemee1
- Oshawa1
- Perth1
- Peterborough1
- Pickering1
- Pickle Lake1
- Picton1
- Port Elmsley1
- Prescott1
- Quinte West1
- Richmond Hill1
- Scarborough1
- Skatepark1
- Smiths Falls1
- St. Catharines1
- Thorold1
- Toronto1
- Uxbridge1
- Walpole Island1
- Wasaga Beach1
- Welland1
- Willowdale1
- Fort Erie0
