Castle Hill Weather Forecast

    • 18
    • 23

    Shower or two

    • 18
    • 23

    Showers. Possible storm

    • 17
    • 30

    Possible shower or storm

    • 18
    • 34

    Partly cloudy

    • 17
    • 23

    Possible shower

    • 16
    • 22

    Cloudy

    • 14
    • 30

    Partly cloudy

Today 11 Dec Sydney

Cloudy. High chance of showers. The chance of a thunderstorm in the afternoon and early evening, possibly severe with heavy rain which may lead to flash flooding. Winds southeasterly 25 to 35 km/h.

Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Castle Hill Temperature Statistics View More

December Temperature

Parramatta North (Masons Drive) (7km)

  • Lowest 1 December, 2025

    10 °C

  • Average December

    21.8 °C

  • Highest 6 December, 2025

    41 °C

Climate (2020–Present)

Parramatta North (Masons Drive) (7km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    13 °C

  • Average 2020–2025

    17.6 °C

  • Average High 2020–2025

    23.5 °C
Get WillyWeather+ to remove ads