Grattai Mountain Weather Forecast

    • 11
    • 26

    Partly cloudy

    • 12
    • 25

    Shower

    • 11
    • 24

    Partly cloudy

    • 11
    • 25

    Partly cloudy

    • 12
    • 27

    Partly cloudy

    • 12
    • 24

    Partly cloudy

    • 11
    • 23

    Cloudy

Today 23 Sep North West Slopes and Plains

Partly cloudy. Medium chance of showers on the slopes, slight chance elsewhere. The chance of a thunderstorm during this afternoon and evening. Winds east to northeasterly 25 to 35 km/h tending northwest to northeasterly 20 to 30 km/h in the middle of the day then tending east to northeasterly 15 to 25 km/h in the late afternoon. Daytime maximum temperatures 26 to 32.

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  • Temperature Forecast Bureau of Meteorology

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Grattai Mountain Temperature Statistics View More

September Temperature

Narrabri Airport (33km)

  • Lowest 20 September, 2026

    3.5 °C

  • Average September

    17.1 °C

  • Highest 21 September, 2026

    33.3 °C

Climate (2021–2026)

Narrabri Airport (33km)

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  • Average Low 2021–2026

    12.2 °C

  • Average 2021–2026

    19.2 °C

  • Average High 2021–2026

    26.9 °C
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