Air Quality in Grimsby, Canada

Drizzle
17.6°C · 84.4% humidity
17.6°
Feels 17.6°
17
Good
Air quality is satisfactory. Enjoy outdoor activities.
8 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
17 5am
18
17
17 8am
19
19
19 11am
19
19
19 2pm
21
21
21 5pm
19
19
19 8pm
21
28
28 11pm
28
28
21 2am
21
21
Station readings
17
18
17
CAMS model adj -6
25
25
25
25
25
25
25
25
25
25
27
27
27
25
25
25
27
34
34
34
34
27
27
27
AD 728×90

Air Quality Index Trend

47h · 3 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.

84.4%
Humidity
86.3 km/h
Wind N
1012.5 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
17
4.12 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Grimsby?

Temperature & Precipitation

PM2.5 Trend

47h · 3 stations
PM2.54.12 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (8 stations within 25 km)
4.12
Median
4.15
Average
3.6
Low
5.0
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +1.9

What is the 7-day forecast for Grimsby?

09-05
24.1° 17.1°
1.12 mm
09-06
24.3° 18.0°
3.69 mm
09-07
21.4° 17.1°
0.5 mm
09-08
24.8° 16.2°
5.31 mm
09-09
22.5° 16.0°
6.31 mm
09-10
21.1° 16.4°
0.19 mm
09-11
22.6° 14.5°
0.5 mm
Both models agree Avg diff: 4.1°C

Where are air quality stations near Grimsby?

19
Burlington, Ontario, Canada
23.0 km PM2.5: 4.6 µg/m³
25
Burlington, Ontario, Canada
23.0 km PM2.5: 6.0 µg/m³
18
Burlington, Ontario, Canada
23.0 km PM2.5: 4.3 µg/m³
16
Burlington, Ontario, Canada
23.0 km PM2.5: 3.8 µg/m³
15
Burlington, Ontario, Canada
23.0 km PM2.5: 3.6 µg/m³
17
Burlington, Ontario, Canada
23.0 km PM2.5: 4.1 µg/m³
18
Hamilton Mountain, Ontario, Canada
24.2 km PM2.5: 4.3 µg/m³
15
Hamilton Mountain, Ontario, Canada
24.2 km PM2.5: 3.6 µg/m³
22
Hamilton Mountain, Ontario, Canada
24.2 km PM2.5: 5.3 µg/m³
18
Hamilton Downtown, Ontario, Canada
24.8 km PM2.5: 4.3 µg/m³

What cities are near Grimsby?

18 Stoney Creek 20 Hamilton 12 St. Catharines 19 Oakville 18 Waterdown 17 Burlington 12 Thorold 19 Ancaster 12 Welland 12 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 2026-09-05T12:10 UTC.