Grattai Mountain Weather Forecast

    • 12
    • 17

    Shower

    • 7
    • 20

    Partly cloudy

    • 8
    • 19

    Sunny

    • 6
    • 19

    Partly cloudy

    • 7
    • 20

    Sunny

    • 7
    • 20

    Sunny

    • 8
    • 20

    Partly cloudy

Today 26 Aug North West Slopes and Plains

Partly cloudy. Very high chance of showers on the slopes, medium chance elsewhere. The chance of a thunderstorm in the morning and afternoon. Light winds becoming west to southwesterly 15 to 25 km/h in the morning then becoming light in the evening. Overnight temperatures falling to between 10 and 14 with daytime temperatures reaching between 18 and 22.

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  • Temperature Forecast Bureau of Meteorology

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Grattai Mountain Temperature Statistics View More

August Temperature

Narrabri Airport (33km)

  • Lowest 7 August, 2026

    -0.9 °C

  • Average August

    13 °C

  • Highest 24 August, 2026

    23.9 °C

Climate (2021–2026)

Narrabri Airport (33km)

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  • Average Low 2021–2026

    12.1 °C

  • Average 2021–2026

    19.1 °C

  • Average High 2021–2026

    26.8 °C
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