St Marys Weather Forecast
- 13
- 23
Partly cloudy
- 12
- 23
Partly cloudy
- 12
- 25
Shower or two
- 12
- 25
Possible shower
- 12
- 26
Partly cloudy
- 12
- 24
Possible shower
- 11
- 25
Possible shower
Today 22 Apr Sydney
Partly cloudy. Medium chance of showers, becoming less likely this afternoon. Winds southerly 15 to 25 km/h becoming light in the late evening.
St Marys Temperature Statistics View More
April Temperature
Penrith Lakes (10km)
Lowest 19 April, 2026
7.4 °CAverage April
18.1 °CHighest 7 April, 2026
32.6 °C
Climate (2021–Present)
Penrith Lakes (10km)
Average Low 2021–2026
12.5 °CAverage 2021–2026
17.8 °CAverage High 2021–2026
24.9 °C