Blacktown Weather Forecast

    • 12
    • 24

    Partly cloudy

    • 13
    • 24

    Partly cloudy

    • 13
    • 26

    Partly cloudy

    • 13
    • 29

    Sunny

    • 15
    • 31

    Partly cloudy

    • 17
    • 26

    Cloudy

    • 17
    • 27

    Cloudy

Today 27 Dec Sydney

Partly cloudy. Slight chance of a shower along the coastal fringe, near zero chance elsewhere. Winds south to southwesterly 15 to 20 km/h tending south to southeasterly 20 to 30 km/h in the middle of the day then tending south to southwesterly 15 to 20 km/h in the late evening.

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Blacktown Temperature Statistics View More

December Temperature

Horsley Park (10km)

  • Lowest 3 December, 2025

    9.6 °C

  • Average December

    22.5 °C

  • Highest 19 December, 2025

    41 °C

Climate (2020–Present)

Horsley Park (10km)

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  • Average Low 2020–2025

    12.2 °C

  • Average 2020–2025

    17.3 °C

  • Average High 2020–2025

    23.7 °C
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