Pollen count and allergy info for St. Catharines
St. Catharines pollen and allergy report • 05:00, Aug 6
Index
Low
Tree
None
Grass
Low
Weed
None
22°
7 km/h
88%Daily allergy forecast
St. Catharines pollen count forecast
Today  19 km/h 28°22° 73% | Friday 18 km/h 29°21° 82% | Saturday 29 km/h30°22° 77% |
Air pollutants
Air quality in St. Catharines today
AQI⁺
Air quality index
33AQI⁺ US
PM2.5
Fine particles (≤ 2.5 µm)
6µg/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?
- Brockville3
- Cornwall3
- Fort Erie3
- Fort Frances3
- Morrisburg3
- Prescott3
- Thunder Bay3
- Walpole Island3
- Ajax2
- Angus2
- Aylmer2
- Bancroft2
- Belleville2
- Binbrook2
- Bluewater2
- Blyth2
- Bracebridge2
- Brampton2
- Brant2
- Brantford2
- Buckhorn2
- Cambridge2
- Camlachie2
- Cobourg2
- Dorset2
- East Garafraxa2
- Egbert2
- Gananoque2
- Geraldton2
- Goderich2
- Grand Bend2
- Gravenhurst2
- Greater Sudbury2
- Greenstone2
- Guelph2
- Hanover2
- Hawkesville2
- Hornepayne2
- Huntsville2
- Huron East2
- Ingersoll2
- Innisfil2
- Kasabonika2
- Kenora District2
- Kincardine2
- Kingston2
- Kitchener2
- Lambton Shores2
- Lindsay2
- Marathon2
- Mattawa2
- Midland2
- Minden Hills2
- Newmarket2
- Norfolk County2
- North Bay2
- North Perth2
- Omemee2
- Orangeville2
- Oshawa2
- Owen Sound2
- Paris2
- Parry Sound2
- Pembroke2
- Perth2
- Peterborough2
- Petrolia2
- Pickle Lake2
- Port Elmsley2
- Port Stanley2
- Powassan2
- Prince Edward2
- Rayside-Balfour2
- Renfrew2
- Sarnia2
- Sault Ste. Marie2
- Shelburne2
- Simcoe2
- Smiths Falls2
- South Huron2
- South River2
- St. Thomas2
- Stratford2
- Tiverton2
- Waterloo2
- Wellington County2
- Wingham2
- Woodstock2
- Algoma1
- Almonte1
- Amherstburg1
- Ancaster1
- Arnprior1
- Atikokan1
- Bainsville1
- Barrie1
- Bells Corners1
- Bonner Lake1
- Bourget1
- Breslau1
- Bruce Mines1
- Burlington1
- Caledon1
- Carleton Place1
- Casselman1
- Chatham1
- Clarence-Rockland1
- Coldwater1
- Collingwood1
- Concord1
- Deep River1
- Delaware1
- Deseronto1
- Dorchester1
- Dryden1
- Ear Falls1
- East York1
- Elliot Lake1
- Embrun1
- Englehart1
- Erin1
- Espanola1
- Etobicoke1
- Greater Napanee1
- Hamilton1
- Hawkesbury1
- Hearst1
- Iroquois Falls1
- Kapuskasing1
- Kenora1
- Keswick1
- Kirkland Lake1
- Larder Lake1
- Little Current1
- London1
- Markham1
- Milton1
- Mississauga1
- Napanee Downtown1
- Neebing1
- Nepean1
- Nestor Falls1
- Niagara Falls1
- Niagara on the Lake1
- North York1
- Oakville1
- Orillia1
- Ottawa1
- Petawawa1
- Pickering1
- Picton1
- Port Colborne1
- Quinte West1
- Red Lake1
- Richmond Hill1
- Scarborough1
- Sheguiandah1
- Sioux Narrows1
- Skatepark1
- St. Catharines1
- Temiskaming Shores1
- Thessalon1
- Thorold1
- Timmins1
- Tobermory1
- Toronto1
- Uxbridge1
- Vaughan1
- Wasaga Beach1
- Welland1
- Wendover1
- Willowdale1
- Windsor1
