Hornsby Weather Forecast

    • 12
    • 23

    Sunny

    • 14
    • 31

    Windy. Partly cloudy

    • 13
    • 23

    Sunny

    • 11
    • 22

    Possible shower developing

    • 12
    • 19

    Partly cloudy

    • 10
    • 19

    Possible shower

    • 10
    • 20

    Mostly sunny

Today 4 Sep Sydney

Sunny. Winds west to southwesterly 15 to 20 km/h tending northwest to northeasterly 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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Hornsby Temperature Statistics View More

September Temperature

Terrey Hills (12km)

  • Lowest 1 September, 2026

    11.3 °C

  • Average September

    19.9 °C

  • Highest 2 September, 2026

    26.4 °C

Climate (2021–2026)

Terrey Hills (12km)

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  • Average Low 2021–2026

    13.6 °C

  • Average 2021–2026

    17.1 °C

  • Average High 2021–2026

    21.9 °C
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