Gregory Hills Weather Forecast

Today 15 Dec
- 15
- 23
Cloudy
Tue 16 Dec
- 15
- 22
Cloudy
Wed 17 Dec
- 15
- 29
Partly cloudy
Thu 18 Dec
- 15
- 35
Mostly sunny
Fri 19 Dec
- 19
- 36
Shower or two developing
Sat 20 Dec
- 19
- 33
Shower or two
Sun 21 Dec
- 20
- 35
Shower or two

Today 15 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Tue 16 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Wed 17 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Thu 18 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Fri 19 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Sat 20 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Sun 21 Dec
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm

Today 15 Dec Sydney

Cloudy. Medium chance of showers, most likely in the evening. Winds southeasterly 20 to 30 km/h.

Gregory Hills Temperature Statistics View More

December Temperature

Campbelltown (Mount Annan) (3km)

Lowest 17 June, 2025
-0.5 °C
Average 2025
16.9 °C
Highest 28 January, 2025
40.7 °C
Lowest 12 November, 2025
4.2 °C
Average November
19.8 °C
Highest 8 November, 2025
35.3 °C
Lowest 1 December, 2025
7.4 °C
Average December
21.5 °C
Highest 6 December, 2025
40.7 °C

Climate (2020–Present)

Campbelltown (Mount Annan) (3km)

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Average Low 2020–2025
10.9 °C
Average 2020–2025
16.5 °C
Average High 2020–2025
23.9 °C

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