Castlereagh Weather Forecast

    • 18
    • 39

    Possible storm

    • 19
    • 26

    Shower or two

    • 18
    • 29

    Morning shower or two

    • 18
    • 30

    Cloudy

    • 18
    • 31

    Mostly sunny

    • 21
    • 36

    Partly cloudy

    • 24
    • 41

    Becoming cloudy

Today 22 Jan Sydney

Partly cloudy. Slight chance of a shower. The chance of a thunderstorm, possibly severe. Winds southerly 35 to 50 km/h decreasing to 25 to 35 km/h in the late evening.

Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Castlereagh Temperature Statistics View More

January Temperature

Penrith Lakes (5km)

  • Lowest 20 January, 2025

    14.6 °C

  • Average January

    22.6 °C

  • Highest 6 January, 2025

    39.6 °C

Climate (2020–Present)

Penrith Lakes (5km)

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

  • Average Low 2020–2025

    12.4 °C

  • Average 2020–2025

    17.6 °C

  • Average High 2020–2025

    24.7 °C
Get WillyWeather+ to remove ads