St Marys Weather Forecast

Today 19 Aug
- 7
- 21
Clear
Thu 20 Aug
- 8
- 24
Partly cloudy
Fri 21 Aug
- 11
- 21
Showers easing
Sat 22 Aug
- 9
- 22
Sunny
Sun 23 Aug
- 10
- 21
Partly cloudy
Mon 24 Aug
- 8
- 25
Partly cloudy
Tue 25 Aug
- 12
- 23
Showers

Today 19 Aug
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 20 Aug
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Fri 21 Aug
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 22 Aug
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 23 Aug
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 24 Aug
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 25 Aug
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 19 Aug Sydney

Partly cloudy. Slight chance of a shower in the late morning and afternoon. Winds northeasterly 15 to 25 km/h becoming light in the evening.

St Marys Temperature Statistics View More

August Temperature

Penrith Lakes (10km)

Lowest 31 July, 2026
1.1 °C
Average 2026
17.7 °C
Highest 9 January, 2026
42.5 °C
Lowest 31 July, 2026
1.1 °C
Average July
11.9 °C
Highest 2 July, 2026
23.6 °C
Lowest 6 August, 2026
2.1 °C
Average August
11.7 °C
Highest 3 August, 2026
22.1 °C

Climate (2021–2026)

Penrith Lakes (10km)

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

Average Low 2021–2026
12.7 °C
Average 2021–2026
17.9 °C
Average High 2021–2026
24.9 °C

Get WillyWeather+ to remove ads