St Marys South Weather Forecast

    • 16
    • 26

    Showers. Storm

    • 12
    • 27

    Mostly sunny

    • 13
    • 25

    Partly cloudy

    • 15
    • 29

    Mostly sunny

    • 13
    • 21

    Partly cloudy

    • 11
    • 23

    Partly cloudy

    • 8
    • 28

    Sunny

Today 3 Oct Sydney

Partly cloudy. High chance of showers, becoming less likely at night. A thunderstorm likely, possibly severe with damaging winds and large hail in the west from the late morning. Winds north to northeasterly 20 to 30 km/h becoming light in the late evening.

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St Marys South Temperature Statistics View More

October Temperature

Horsley Park (11km)

  • Lowest 1 October, 2026

    10.1 °C

  • Average October

    20.1 °C

  • Highest 1 October, 2026

    31.5 °C

Climate (2021–2026)

Horsley Park (11km)

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  • Average Low 2021–2026

    12.5 °C

  • Average 2021–2026

    17.4 °C

  • Average High 2021–2026

    23.9 °C
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