Air Quality in Grimsby, Canada

Drizzle
9.6°C · 89.1% humidity
9.6°
Feels 3.5°
32
Good
Air quality is satisfactory. Enjoy outdoor activities.
6 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
34 4pm
34
34
32 7pm
34
14
14 10pm
34
34
34 1am
34
34
34 4am
34
34
34 7am
34
34
34 10am
34
34
34 1pm
34
34
Station readings 25h ago
AQI 34
PM2.5 8.2 µg/m³ · 25h ago
AD 728×90

Air Quality Index Trend

47h · 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.

89.1%
Humidity
96.1 km/h
Wind WNW
1001.6 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
32
7.73 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Grimsby?

Temperature & Precipitation

PM2.5 Trend

47h · 9 stations
PM2.57.73 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (6 stations within 25 km)
7.73
Median
7.8
Average
6.0
Low
10.1
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +3.1

What is the 7-day forecast for Grimsby?

06-08
23.1° 10.5°
8.25 mm
06-09
25.4° 9.6°
3.0 mm
06-10
16.5° 12.6°
3.38 mm
06-11
21.9° 12.8°
06-12
23.0° 13.8°
0.19 mm
06-13
21.5° 18.1°
2.06 mm
06-14
19.0° 14.2°
Both models agree Avg diff: 3.9°C

Where are air quality stations near Grimsby?

44
Burlington, Ontario, Canada
23.0 km PM2.5: 10.6 µg/m³
76
Burlington, Ontario, Canada
23.0 km PM2.5: 24.0 µg/m³
100
Hamilton Mountain, Ontario, Canada
24.2 km PM2.5: 35.4 µg/m³
90
Hamilton Mountain, Ontario, Canada
24.2 km PM2.5: 30.6 µg/m³
95
Hamilton Downtown, Ontario, Canada
24.8 km PM2.5: 33.0 µg/m³
55
Hamilton Downtown, Ontario, Canada
24.8 km PM2.5: 14.0 µg/m³
69
Hamilton Downtown, Ontario, Canada
24.8 km PM2.5: 20.7 µg/m³

What cities are near Grimsby?

34 Stoney Creek 38 Hamilton 30 St. Catharines 32 Oakville 34 Waterdown 32 Burlington 30 Thorold 37 Ancaster 30 Welland 30 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 2026-06-08T23:09 UTC.