Rossmore Weather Forecast

    • 17
    • 37

    Sunny

    • 17
    • 29

    Cloudy

    • 17
    • 23

    Showers. Possible storm

    • 16
    • 23

    Showers. Possible afternoon storm

    • 15
    • 31

    Shower or two

    • 17
    • 33

    Mostly sunny

    • 16
    • 28

    Possible shower

Today 9 Dec Sydney

Mostly sunny. The chance of fog in the outer west in the early morning. Slight chance of a shower along the coastal fringe in the evening. Near zero chance of rain elsewhere. Light winds becoming southeast to southwesterly 15 to 25 km/h in the middle of the day then tending south to southeasterly 25 to 35 km/h in the late afternoon.

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  • Temperature Forecast Bureau of Meteorology

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Rossmore Temperature Statistics View More

December Temperature

Badgerys Creek (5km)

  • Lowest 1 December, 2025

    8.1 °C

  • Average December

    21.9 °C

  • Highest 6 December, 2025

    41.9 °C

Climate (2020–Present)

Badgerys Creek (5km)

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  • Average Low 2020–2025

    11.3 °C

  • Average 2020–2025

    16.9 °C

  • Average High 2020–2025

    24.2 °C
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