Castle Hill Weather Forecast

Today 18 Sep
- 6
- 27
Mostly clear
Sat 19 Sep
- 10
- 30
Sunny
Sun 20 Sep
- 12
- 33
Sunny
Mon 21 Sep
- 16
- 28
Shower or two developing
Tue 22 Sep
- 12
- 18
Possible shower
Wed 23 Sep
- 12
- 23
Cloudy
Thu 24 Sep
- 12
- 27
Sunny

Today 18 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Sat 19 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Sun 20 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Mon 21 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Tue 22 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Wed 23 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Thu 24 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm

Today 18 Sep Sydney

Mostly clear. Winds westerly 15 to 20 km/h.

Castle Hill Temperature Statistics View More

September Temperature

Parramatta North (Masons Drive) (7km)

Lowest 6 August, 2026
3 °C
Average 2026
15.6 °C
Highest 10 January, 2026
42.2 °C
Lowest 6 August, 2026
3 °C
Average August
13.3 °C
Highest 24 August, 2026
24.5 °C
Lowest 1 September, 2026
7 °C
Average September
17.2 °C
Highest 5 September, 2026
32.2 °C

Climate (2021–2026)

Parramatta North (Masons Drive) (7km)

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Average Low 2021–2026
13.3 °C
Average 2021–2026
17.5 °C
Average High 2021–2026
23.7 °C

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