Air Quality in Grimsby, Canada

Windy
11.2°C · 74.6% humidity
11.2°
Feels 11.2°
34
Good
Air quality is satisfactory. Enjoy outdoor activities.
8 stations

Nearby Monitoring Stations

AQI Forecast
34 9pm
54
54
34 12am
40
44
47 3am
49
30
31 6am
25
24
24 9am
24
24
27 12pm
27
34
54 3pm
54
54
54 6pm
54
54
AD 728×90

Air Quality Index Trend

48h · 9 stn

Grimsby's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

74.6%
Humidity
71.8 km/h
Wind NNE
1022.1 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
34
8.16 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Grimsby?

Temperature & Precipitation

PM2.5 Trend

48h · 9 stations
PM2.58.16 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (8 stations within 25 km)
8.16
Median
8.15
Average
7.2
Low
9.4
High
PM2.5 µg/m³ · Model: 9.75 · Bias: +1.6

What is the 7-day forecast for Grimsby?

05-30
15.4° 11.2°
0.19 mm
05-31
21.1° 10.5°
06-01
19.9° 12.8°
0.06 mm
06-02
17.6° 11.4°
0.06 mm
06-03
19.8° 14.1°
0.13 mm
06-04
19.2° 12.4°
0.19 mm
06-05
19.9° 11.6°
1.63 mm
Both models agree Avg diff: 3.4°C

Where are air quality stations near Grimsby?

16
Burlington, Ontario, Canada
23.0 km PM2.5: 3.8 µg/m³
34
Burlington, Ontario, Canada
23.0 km PM2.5: 8.2 µg/m³
31
Hamilton Mountain, Ontario, Canada
24.2 km PM2.5: 7.4 µg/m³
20
Hamilton Mountain, Ontario, Canada
24.2 km PM2.5: 4.8 µg/m³
34
Hamilton Downtown, Ontario, Canada
24.8 km PM2.5: 8.2 µg/m³
13
Hamilton Downtown, Ontario, Canada
24.8 km PM2.5: 3.1 µg/m³
89
Hamilton Downtown, Ontario, Canada
24.8 km PM2.5: 30.2 µg/m³

What cities are near Grimsby?

34 Stoney Creek 33 Hamilton 36 St. Catharines 34 Oakville 34 Waterdown 34 Burlington 36 Thorold 34 Ancaster 36 Welland 36 Niagara-on-the-Lake
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-30T04:07 UTC.