North St Marys Weather Forecast
- 10
- 19
Shower or two
- 10
- 20
Partly cloudy
- 7
- 21
Partly cloudy
- 5
- 21
Mostly sunny
- 4
- 23
Mostly sunny
- 9
- 19
Sunny
- 5
- 19
Mostly sunny
Today 18 Jul Sydney
Partly cloudy. Medium chance of showers, most likely in the early morning. Winds south to southwesterly 15 to 20 km/h tending south to southeasterly in the middle of the day then becoming light in the evening.
North St Marys Temperature Statistics View More
July Temperature
Penrith Lakes (10km)
Lowest 14 July, 2026
3 °CAverage July
12.5 °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