St Marys South Weather Forecast

    • 10
    • 19

    Partly cloudy

    • 10
    • 20

    Partly cloudy

    • 7
    • 21

    Partly cloudy

    • 5
    • 21

    Mostly sunny

    • 4
    • 23

    Mostly sunny

    • 9
    • 19

    Sunny

    • 5
    • 19

    Mostly sunny

Today 18 Jul Sydney

Partly cloudy. Patchy morning fog in the west. Slight chance of a shower. Winds south to southwesterly 15 to 20 km/h tending south to southeasterly in the middle of the day then becoming light in the evening.

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  • Temperature Forecast Bureau of Meteorology

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St Marys South Temperature Statistics View More

July Temperature

Horsley Park (11km)

  • Lowest 4 July, 2026

    3.3 °C

  • Average July

    12.5 °C

  • Highest 2 July, 2026

    22.2 °C

Climate (2021–2026)

Horsley Park (11km)

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  • Average Low 2021–2026

    12.4 °C

  • Average 2021–2026

    17.4 °C

  • Average High 2021–2026

    23.8 °C
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