Pollen count and allergy info for St. Catharines
St. Catharines pollen and allergy report • 16:00, Jul 20
Index
Low
Tree
None
Grass
Low
Weed
None
26°
21 km/h
50%Daily allergy forecast
St. Catharines pollen count forecast
Today  23 km/h 26°17° 58% | Tuesday 38 km/h27°21° 76% | Wednesday 32 km/h20°15° 71% |
Air pollutants
Air quality in St. Catharines today
AQI⁺
Air quality index
60AQI⁺ US
PM2.5
Fine particles (≤ 2.5 µm)
14µg/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
- Morrisburg3
- Prescott3
- Ajax2
- Algoma2
- Almonte2
- Angus2
- Arnprior2
- Bainsville2
- Bancroft2
- Barrie2
- Belleville2
- Bells Corners2
- Bluewater2
- Blyth2
- Bourget2
- Bracebridge2
- Brampton2
- Brant2
- Brantford2
- Breslau2
- Caledon2
- Cambridge2
- Carleton Place2
- Casselman2
- Clarence-Rockland2
- Coldwater2
- Collingwood2
- Deep River2
- Delaware2
- Deseronto2
- Dorchester2
- Dorset2
- East Garafraxa2
- Egbert2
- Embrun2
- Erin2
- Fort Erie2
- Fort Frances2
- Gananoque2
- Geraldton2
- Goderich2
- Grand Bend2
- Gravenhurst2
- Greater Napanee2
- Greater Sudbury2
- Greenstone2
- Guelph2
- Hanover2
- Hawkesbury2
- Hawkesville2
- Huntsville2
- Huron East2
- Ingersoll2
- Innisfil2
- Kasabonika2
- Kenora District2
- Keswick2
- Kincardine2
- Kingston2
- Kirkland Lake2
- Kitchener2
- Lambton Shores2
- Larder Lake2
- Lindsay2
- Markham2
- Midland2
- Milton2
- Minden Hills2
- Napanee Downtown2
- Neebing2
- Nepean2
- New Hamburg2
- Newmarket2
- North Perth2
- Omemee2
- Orangeville2
- Orillia2
- Oshawa2
- Ottawa2
- Owen Sound2
- Paris2
- Pembroke2
- Perth2
- Petawawa2
- Peterborough2
- Pickle Lake2
- Picton2
- Port Elmsley2
- Prince Edward2
- Quinte West2
- Rayside-Balfour2
- Renfrew2
- Richmond Hill2
- Sarnia2
- Shelburne2
- Skatepark2
- Smiths Falls2
- South Huron2
- South River2
- Stratford2
- Thessalon2
- Tiverton2
- Uxbridge2
- Walpole Island2
- Waterloo2
- Wellington County2
- Wendover2
- Wingham2
- Woodstock2
- Amherstburg1
- Ancaster1
- Atikokan1
- Aylmer1
- Binbrook1
- Bonner Lake1
- Burlington1
- Camlachie1
- Chatham1
- Cobourg1
- Concord1
- Dryden1
- Ear Falls1
- East York1
- Elliot Lake1
- Espanola1
- Etobicoke1
- Hamilton1
- Hearst1
- Iroquois Falls1
- Kapuskasing1
- Kenora1
- Little Current1
- London1
- Mattawa1
- Mississauga1
- Nestor Falls1
- Niagara Falls1
- Niagara on the Lake1
- Norfolk County1
- North Bay1
- North York1
- Oakville1
- Parry Sound1
- Petrolia1
- Pickering1
- Port Colborne1
- Port Stanley1
- Powassan1
- Red Lake1
- Sault Ste. Marie1
- Scarborough1
- Sheguiandah1
- Simcoe1
- Sioux Narrows1
- St. Catharines1
- St. Thomas1
- Temiskaming Shores1
- Thorold1
- Thunder Bay1
- Timmins1
- Tobermory1
- Toronto1
- Vaughan1
- Wasaga Beach1
- Welland1
- Willowdale1
- Windsor1
- Englehart0
- Hornepayne0
- Marathon0
