Greta Main Weather Forecast

    • 12
    • 35

    Possible shower developing

    • 11
    • 19

    Shower or two

    • 11
    • 25

    Possible shower

    • 10
    • 27

    Partly cloudy

    • 9
    • 31

    Sunny

    • 10
    • 33

    Mostly sunny

    • 11
    • 21

    Shower or two

Today 21 Sep Hunter

Mostly sunny day. Medium chance of showers in the late afternoon and evening. Winds northwesterly 15 to 20 km/h shifting south to southeasterly 25 to 35 km/h in the early afternoon. Overnight temperatures falling to between 9 and 17 with daytime temperatures reaching 29 to 35.

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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Greta Main Temperature Statistics View More

September Temperature

Cessnock Airport (12km)

  • Lowest 18 September, 2026

    1.5 °C

  • Average September

    15.6 °C

  • Highest 5 September, 2026

    31.1 °C

Climate (2021–2026)

Cessnock Airport (12km)

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  • Average Low 2021–2026

    11.2 °C

  • Average 2021–2026

    17.2 °C

  • Average High 2021–2026

    24.5 °C
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