St Marys Weather Forecast
- 4
- 21
Mostly sunny
- 7
- 21
Partly cloudy
- 5
- 18
Sunny
- 2
- 20
Sunny
- 5
- 20
Partly cloudy
- 5
- 21
Mostly sunny
- 6
- 20
Mostly sunny
Today 22 Jul Sydney
Mostly sunny. Light winds.
St Marys Temperature Statistics View More
July Temperature
Penrith Lakes (10km)
Lowest 14 July, 2026
3 °CAverage July
12.4 °CHighest 2 July, 2026
23.6 °C
Climate (2021–2026)
Penrith Lakes (10km)
Average Low 2021–2026
12.7 °CAverage 2021–2026
17.9 °CAverage High 2021–2026
24.9 °C