Thornleigh Weather Forecast

    • 15
    • 18

    Showers

    • 11
    • 19

    Mostly sunny

    • 11
    • 19

    Shower or two

    • 11
    • 18

    Shower or two

    • 13
    • 19

    Shower or two

    • 13
    • 21

    Possible shower

    • 12
    • 19

    Shower or two

Today 19 May Sydney

Partly cloudy. High chance of showers, becoming less likely at night. The chance of thunderstorms in the northwest in the afternoon and evening. Light winds becoming southwesterly 15 to 20 km/h in the early afternoon then becoming light in the late evening.

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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Thornleigh Temperature Statistics View More

May Temperature

Parramatta North (Masons Drive) (9km)

  • Lowest 8 May, 2026

    7.5 °C

  • Average May

    16.6 °C

  • Highest 3 May, 2026

    26 °C

Climate (2021–Present)

Parramatta North (Masons Drive) (9km)

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  • Average Low 2021–2026

    13.2 °C

  • Average 2021–2026

    17.5 °C

  • Average High 2021–2026

    23.6 °C
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