Air Quality in Grimsby, Canada

Clear
20.1°C · 47.6% humidity
20.1°
Feels 20.1°
38
Good
Air quality is satisfactory. Enjoy outdoor activities.
6 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
38 4pm
39
48
38 7pm
30
30
30 10pm
30
30
30 1am
10
10
10 4am
3
3
1 7am
1
1
1 10am
1
3
3 1pm
3
1
Station readings
38
39
48
47
CAMS model adj -24
66
66
66
66
54
54
54
54
54
54
34
34
34
27
27
25
25
25
25
25
27
27
27
25
AD 728×90

Air Quality Index Trend

28h · 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.

47.6%
Humidity
39.4 km/h
Wind ESE
1014.7 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
38
9.2 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Grimsby?

Temperature & Precipitation

PM2.5 Trend

28h · 3 stations
PM2.59.2 µg/m³ ✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (6 stations within 25 km)
9.2
Median
9.18
Average
8.4
Low
9.8
High
PM2.5 µg/m³ · Model: 13.7 · Bias: +4.5

What is the 7-day forecast for Grimsby?

08-03
23.8° 20.1°
2.13 mm
08-04
30.1° 19.6°
4.63 mm
08-05
28.7° 16.2°
0.06 mm
08-06
24.3° 19.9°
8.75 mm
08-07
27.7° 18.1°
0.5 mm
08-08
30.9° 19.7°
08-09
32.6° 19.9°
0.19 mm
Both models agree Avg diff: 2.9°C

Where are air quality stations near Grimsby?

44
Burlington, Ontario, Canada
23.0 km PM2.5: 10.6 µg/m³
38
Burlington, Ontario, Canada
23.0 km PM2.5: 9.1 µg/m³
55
Burlington, Ontario, Canada
23.0 km PM2.5: 14.0 µg/m³
45
Burlington, Ontario, Canada
23.0 km PM2.5: 10.8 µg/m³
34
Hamilton Mountain, Ontario, Canada
24.2 km PM2.5: 8.2 µg/m³
41
Hamilton Mountain, Ontario, Canada
24.2 km PM2.5: 9.8 µg/m³
34
Hamilton Mountain, Ontario, Canada
24.2 km PM2.5: 8.2 µg/m³
42
Hamilton Mountain, Ontario, Canada
24.2 km PM2.5: 10.1 µg/m³
40
Hamilton Mountain, Ontario, Canada
24.2 km PM2.5: 9.6 µg/m³
34
Hamilton Downtown, Ontario, Canada
24.8 km PM2.5: 8.2 µg/m³

What cities are near Grimsby?

38 Stoney Creek 36 Hamilton 35 St. Catharines 39 Oakville 38 Waterdown 38 Burlington 35 Thorold 38 Ancaster 35 Welland 35 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 2026-08-07T23:45 UTC.