Castlereagh Weather Forecast

    • 23
    • 32

    Possible shower

    • 21
    • 33

    Partly cloudy

    • 20
    • 33

    Shower or two developing

    • 19
    • 23

    Showers

    • 18
    • 24

    Shower or two

    • 18
    • 26

    Shower or two

    • 19
    • 25

    Showers

Today 23 Feb Sydney

Cloudy. Medium chance of showers. The chance of a thunderstorm in the afternoon and evening, possibly severe with heavy rain which may lead to flash flooding in the west in the afternoon and early evening. Light winds becoming south to southeasterly 20 to 30 km/h in the middle of the day then becoming light in the late evening.

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  • Temperature Forecast Bureau of Meteorology

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Castlereagh Temperature Statistics View More

February Temperature

Penrith Lakes (5km)

  • Lowest 3 February, 2026

    15 °C

  • Average February

    23.1 °C

  • Highest 5 February, 2026

    39 °C

Climate (2021–Present)

Penrith Lakes (5km)

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  • Average Low 2021–2026

    12.5 °C

  • Average 2021–2026

    17.8 °C

  • Average High 2021–2026

    24.8 °C
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