St Marys South Weather Forecast
- 17
- 24
Shower or two
- 17
- 26
Shower or two clearing
- 16
- 31
Mostly sunny
- 18
- 37
Possible shower developing
- 20
- 30
Shower or two
- 21
- 31
Shower or two
- 20
- 35
Possible shower
Today 15 Feb Sydney
Partly cloudy. Medium chance of showers. Winds east to southeasterly 15 to 20 km/h becoming light in the late evening.
St Marys South Temperature Statistics View More
February Temperature
Horsley Park (11km)
Lowest 3 February, 2026
14.4 °CAverage February
22.3 °CHighest 5 February, 2026
37.3 °C
Climate (2021–Present)
Horsley Park (11km)
Average Low 2021–2026
12.2 °CAverage 2021–2026
17.3 °CAverage High 2021–2026
23.7 °C