What is the air quality in Grimsby today?

The current Air Quality Index (AQI) in Grimsby is 22 (Good). PM2.5 concentration is 5.18 µg/m³.

What is the temperature in Grimsby right now?

The current temperature in Grimsby is 8.7°C (feels like 3.7°C). Humidity is 62.8% and wind speed is 50.3 km/h.

Is it safe to go outside in Grimsby?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Grimsby, Canada

Windy

8.7°C · 62.8% humidity

8.7°

Feels 3.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

8 stations

Nearby Monitoring Stations

AQI Forecast

22 3pm

22 6pm

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Station readings

Air Quality Index Trend

47h · 3 stn

View full history →

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.

62.8%

Humidity

50.3 km/h

Wind ENE

1028.7 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

5.18 µg/m³

PM10▲

41.2 µg/m³

050100150200300500

What is the weather forecast for Grimsby?

Temperature & Precipitation

PM2.5 Trend

47h · 3 stations

PM2.55.18 µg/m³ ✓ WHO

Good

PM1041.2 µg/m³

Good

UV INDEX0.0

Low

Station readings (8 stations within 25 km)

5.18

Median

5.14

Average

4.3

Low

6.2

High

PM2.5 µg/m³ · Model: 19.2 · Bias: +14.0

What is the 7-day forecast for Grimsby?

10-20

9.1° 7.3°

0.38 mm

10-21

17.1° 8.7°

10-22

16.2° 8.7°

10-23

14.7° 6.9°

2.0 mm

10-24

18.1° 8.2°

0.06 mm

10-25

14.0° 7.2°

3.13 mm

10-26

11.6° 9.3°

4.5 mm

Both models agree Avg diff: 4.1°C

Where are air quality stations near Grimsby?

Burlington, Ontario, Canada

23.0 km PM2.5: 5.8 µg/m³

Burlington, Ontario, Canada

23.0 km PM2.5: 6.2 µg/m³

Burlington, Ontario, Canada

23.0 km PM2.5: 6.0 µg/m³

Hamilton Mountain, Ontario, Canada

24.2 km PM2.5: 5.3 µg/m³

Hamilton Mountain, Ontario, Canada

24.2 km PM2.5: 8.4 µg/m³

Hamilton Mountain, Ontario, Canada

24.2 km PM2.5: 4.6 µg/m³

Hamilton Mountain, Ontario, Canada

24.2 km PM2.5: 5.0 µg/m³

Hamilton Mountain, Ontario, Canada

24.2 km PM2.5: 4.8 µg/m³

Hamilton Mountain, Ontario, Canada

24.2 km PM2.5: 4.3 µg/m³

Hamilton Mountain, Ontario, Canada

24.2 km PM2.5: 4.8 µg/m³

What cities are near Grimsby?

20 Stoney Creek 19 Hamilton 25 St. Catharines 23 Oakville 22 Waterdown 23 Burlington 25 Thorold 18 Ancaster 25 Welland 25 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 2026-10-20T22:41 UTC.