What is the air quality in Welland today?

The current Air Quality Index (AQI) in Welland is 24 (Good). PM2.5 concentration is 5.82 µg/m³.

What is the temperature in Welland right now?

The current temperature in Welland is 5.7°C (feels like -0.0°C). Humidity is 70.5% and wind speed is 44.4 km/h.

Is it safe to go outside in Welland?

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

Air Quality in Welland, Canada

Windy

5.7°C · 70.5% humidity

5.7°

Feels -0.0°

Good

Air quality is satisfactory. Enjoy outdoor activities.

4 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings

Air Quality Index Trend

47h · 1 stn

View full history →

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

70.5%

Humidity

44.4 km/h

Wind NE

1028.8 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.82 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Welland?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station

PM2.55.82 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (4 stations within 25 km)

5.82

Median

5.83

Average

5.5

Low

6.0

High

PM2.5 µg/m³ · Model: 6.5 · Bias: +0.7

What is the 7-day forecast for Welland?

10-20

7.6° 4.1°

0.06 mm

10-21

19.9° 5.7°

10-22

17.3° 7.2°

10-23

14.5° 4.2°

4.06 mm

10-24

19.5° 5.5°

10-25

14.0° 6.1°

6.44 mm

10-26

11.2° 5.6°

2.31 mm

Both models agree Avg diff: 4.1°C

Where are air quality stations near Welland?

St. Catharines, Ontario, Canada

19.7 km PM2.5: 8.2 µg/m³

St. Catharines, Ontario, Canada

19.7 km PM2.5: 5.5 µg/m³

St. Catharines, Ontario, Canada

19.7 km PM2.5: 6.2 µg/m³

St. Catharines, Ontario, Canada

19.7 km PM2.5: 6.0 µg/m³

St. Catharines, Ontario, Canada

19.7 km PM2.5: 5.3 µg/m³

St. Catharines, Ontario, Canada

19.7 km PM2.5: 5.5 µg/m³

St. Catharines, Ontario, Canada

19.7 km PM2.5: 6.0 µg/m³

What cities are near Welland?

13 Port Colborne 24 Thorold 24 Niagara Falls 24 Niagara Falls 24 St. Catharines 13 Grand Island 15 Fort Erie 13 Kenmore 12 North Tonawanda 15 Buffalo

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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 2026-10-20T21:47 UTC.