St Marys South Weather Forecast

    • 16
    • 30

    Mostly clear

    • 19
    • 32

    Showers. Storm developing

    • 18
    • 24

    Possible shower

    • 13
    • 24

    Partly cloudy

    • 10
    • 26

    Sunny

    • 11
    • 28

    Sunny

    • 14
    • 26

    Partly cloudy

Today 24 Oct Sydney

Mostly clear. The chance of a thunderstorm early this evening. Winds northeasterly 15 to 25 km/h becoming light in the late evening.

Graph Plots Open in Graphs
  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

St Marys South Temperature Statistics View More

October Temperature

Horsley Park (11 km)

  • Lowest 9 October, 2026

    7.8 °C
  • Average October

    17.9 °C
  • Highest 12 October, 2026

    34.9 °C

Climate (2021–2026)

Horsley Park (11 km)

Take a look at our website widgetsAvailable free! Find Out More
  • Average Low 2021–2026

    12.5 °C
  • Average 2021–2026

    17.5 °C
  • Average High 2021–2026

    23.9 °C
Get WillyWeather+ to remove ads