Air Quality in Castle Hill, Australia

Cloudy
17.6°C · 80.0% humidity
17.6°
Feels 17.6°
64
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Calibrated model

Nearby Monitoring Stations

AQI Forecast Calibrated
58 5pm
64
52
57 8pm
57
57
57 11pm
32
32
32 2am
19
19
19 5am
19
19
19 8am
19
19
19 11am
19
7
7 2pm
7
7
Station readings
58
64
52
57
CAMS model adj -18
75
75
75
75
75
75
75
50
50
50
37
37
37
37
37
37
37
37
37
37
25
25
25
25
AD 728×90

PM2.5 Trend (24h)

26h · 1 station
80.0%
Humidity
18.1 km/h
Wind NNW
1020.5 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Castle Hill?

Temperature & Precipitation

PM2.518.46 µg/m³ ×1.2 WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX12.9
Extreme
AD 300×250

What is the 7-day forecast for Castle Hill?

04-09
25.1° 17.6°
04-10
26.7° 17.1°
04-11
26.7° 14.3°
0.19 mm
04-12
21.8° 11.6°
04-13
24.3° 12.9°
04-14
26.3° 15.0°
04-15
18.9° 14.9°
0.69 mm
Both models agree Avg diff: 2.2°C

Where are air quality stations near Castle Hill?

58
North Parramatta Sydney North-west
7.4 km
63
North Parramatta Sydney North-west
7.4 km
47
North Parramatta Sydney North-west
7.4 km
55
North Parramatta Sydney North-west
7.4 km
39
North Parramatta Sydney North-west
7.4 km
20
North Parramatta Sydney North-west
7.4 km
48
North Parramatta Sydney North-west
7.4 km
58
Prospect Sydney North-west
10.4 km
48
Prospect Sydney North-west
10.4 km
15
Prospect Sydney North-west
10.4 km

What cities are near Castle Hill?

63 Baulkham Hills 65 Cherrybrook 64 West Pennant Hills 65 Kellyville 64 Glenwood 64 Carlingford 64 Westmead 63 Seven Hills 64 Blacktown 64 Epping

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T20:54 UTC.