St Marys South Weather Forecast
- 3
- 21
Sunny
- 6
- 20
Partly cloudy
- 4
- 21
Mostly sunny
- 4
- 22
Sunny
- 5
- 18
Partly cloudy
- 6
- 18
Partly cloudy
- 6
- 19
Partly cloudy
Today 25 Jul Sydney
Sunny. The chance of morning frost. Winds westerly 15 to 20 km/h becoming light in the middle of the day then becoming west to southwesterly 15 to 20 km/h in the late evening.
St Marys South Temperature Statistics View More
July Temperature
Horsley Park (11km)
Lowest 4 July, 2026
3.3 °CAverage July
12.5 °CHighest 2 July, 2026
22.2 °C
Climate (2021–2026)
Horsley Park (11km)
Average Low 2021–2026
12.4 °CAverage 2021–2026
17.4 °CAverage High 2021–2026
23.8 °C