Mount Vernon Weather Forecast

Today 22 Dec
- 24
- 34
Cloudy
Tue 23 Dec
- 19
- 33
Mostly sunny
Wed 24 Dec
- 17
- 35
Sunny
Thu 25 Dec
- 18
- 23
Shower or two
Fri 26 Dec
- 15
- 22
Cloudy
Sat 27 Dec
- 13
- 25
Partly cloudy
Sun 28 Dec
- 14
- 26
Partly cloudy

Today 22 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 23 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 24 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 25 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 26 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 27 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 28 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 22 Dec Sydney

Cloudy. Slight chance of a shower. Winds east to southeasterly 15 to 20 km/h.

Mount Vernon Temperature Statistics View More

December Temperature

Horsley Park (4km)

Lowest 17 July, 2025
0.5 °C
Average 2025
17.8 °C
Highest 28 January, 2025
42 °C
Lowest 12 November, 2025
6.6 °C
Average November
20.5 °C
Highest 8 November, 2025
35.2 °C
Lowest 3 December, 2025
9.6 °C
Average December
22.7 °C
Highest 19 December, 2025
41 °C

Climate (2020–Present)

Horsley Park (4km)

Take a look at our website widgetsAvailable free! Find Out More

Average Low 2020–2025
12.2 °C
Average 2020–2025
17.2 °C
Average High 2020–2025
23.6 °C

Get WillyWeather+ to remove ads