St Marys South Weather Forecast

    • 20
    • 24

    Showers increasing

    • 17
    • 23

    Shower or two

    • 19
    • 32

    Shower or two

    • 21
    • 32

    Shower or two. Storm

    • 21
    • 30

    Shower or two. Possible storm

    • 18
    • 28

    Possible shower

    • 16
    • 26

    Possible shower

Today 11 Jan Sydney

Cloudy. High chance of showers, most likely during this afternoon and evening. The chance of a thunderstorm late this afternoon and evening. Winds southerly 25 to 35 km/h turning southeasterly in the late morning and early afternoon.

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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

St Marys South Temperature Statistics View More

January Temperature

Horsley Park (11km)

  • Lowest 1 January, 2026

    15.4 °C

  • Average January

    23.9 °C

  • Highest 8 January, 2026

    40.7 °C

Climate (2021–Present)

Horsley Park (11km)

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  • Average Low 2021–2026

    12.2 °C

  • Average 2021–2026

    17.3 °C

  • Average High 2021–2026

    23.7 °C
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