Castlereagh Weather Forecast

    • 14
    • 32

    Mostly sunny

    • 18
    • 35

    Partly cloudy

    • 17
    • 26

    Mostly sunny

    • 11
    • 22

    Sunny

    • 9
    • 23

    Sunny

    • 9
    • 24

    Sunny

    • 11
    • 27

    Sunny

Today 9 Apr Sydney

The chance of fog early this morning. Sunny afternoon. Light winds becoming north to northeasterly 15 to 20 km/h in the early afternoon then becoming light in the evening.

Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Castlereagh Temperature Statistics View More

April Temperature

Penrith Lakes (5km)

  • Lowest 6 April, 2026

    12.2 °C

  • Average April

    19.1 °C

  • Highest 7 April, 2026

    32.6 °C

Climate (2021–Present)

Penrith Lakes (5km)

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

  • Average Low 2021–2026

    12.5 °C

  • Average 2021–2026

    17.8 °C

  • Average High 2021–2026

    24.8 °C
Get WillyWeather+ to remove ads