Air Quality in St Clair, Australia

Windy
15.8°C · 45.2% humidity
15.8°
Feels 15.8°
43
Good
Air quality is satisfactory. Enjoy outdoor activities.
8 stations

Nearby Monitoring Stations

AQI Forecast
54 7am
54
54
43 10am
33
32
30 1pm
29
29
28 4pm
35
55
54 7pm
54
54
54 10pm
54
54
54 1am
54
54
54 4am
54
54
AD 728×90

Air Quality Index Trend

48h · 1 stn

St Clair's air quality is generally good but can be impacted by bushfire smoke, dust storms, and vehicle emissions. Seasonal fire events can cause significant temporary air quality deterioration.

45.2%
Humidity
41.9 km/h
Wind WSW
1016.6 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
43
10.42 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for St Clair?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.510.42 µg/m³ ✓ WHO
Good
PM1034.3 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
Station readings (8 stations within 25 km)
10.42
Median
13.6
Average
8.2
Low
21.6
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +0.4

What is the 7-day forecast for St Clair?

06-09
15.9° 9.3°
0.81 mm
06-10
17.0° 11.9°
0.38 mm
06-11
18.4° 5.5°
0.56 mm
06-12
15.9° 9.7°
06-13
16.8° 9.5°
06-14
18.3° 14.7°
37.31 mm
06-15
19.2° 10.2°
Both models agree Avg diff: 2.1°C

Where are air quality stations near St Clair?

46
St Marys Sydney North-west
1.7 km PM2.5: 11.0 µg/m³
59
St Marys Sydney North-west
1.7 km PM2.5: 15.9 µg/m³
21
St Marys Sydney North-west
1.7 km PM2.5: 5.0 µg/m³
59
St Marys Sydney North-west
1.7 km PM2.5: 15.9 µg/m³
21
St Marys Sydney North-west
1.7 km PM2.5: 5.0 µg/m³
61
St Marys Sydney North-west
1.7 km PM2.5: 16.9 µg/m³
57
St Marys Sydney North-west
1.7 km PM2.5: 15.0 µg/m³
2
St Marys Sydney North-west
1.7 km PM2.5: 0.5 µg/m³
68
St Marys Sydney North-west
1.7 km PM2.5: 20.2 µg/m³
55
St Marys Sydney North-west
1.7 km PM2.5: 14.0 µg/m³

What cities are near St Clair?

51 Mount Druitt 50 Glenmore Park 57 Quakers Hill 50 Cranebrook 53 Blacktown 53 Seven Hills 54 Greystanes 56 Glenwood 59 Fairfield 65 Cabramatta
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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 2026-06-09T00:40 UTC.