St Marys Weather Forecast
- 15
- 27
Shower or two
- 17
- 22
Shower or two
- 16
- 22
Shower or two
- 13
- 27
Partly cloudy
- 14
- 33
Sunny
- 18
- 27
Shower or two
- 17
- 31
Partly cloudy
Today 3 Apr Sydney
Partly cloudy. The chance of smoke haze in the outer west in the early afternoon. Medium chance of showers. Winds southerly 20 to 30 km/h.
St Marys Temperature Statistics View More
April Temperature
Penrith Lakes (10km)
Lowest 1 April, 2026
13.8 °CAverage April
19.4 °CHighest 1 April, 2026
29.5 °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