Dumbarton Weather Forecast

    • 12
    • 17

    Showers. Windy

    • 7
    • 16

    Cloudy

    • 5
    • 17

    Cloudy

    • 6
    • 19

    Showers increasing

    • 6
    • 18

    Possible shower

    • 7
    • 20

    Partly cloudy

    • 7
    • 22

    Partly cloudy

Today 14 Sep Central Wheat Belt

Partly cloudy. Very high chance of showers in the far southwest, high chance elsewhere. Damaging winds possible in the south. Winds northwesterly 35 to 55 km/h turning westerly in the middle of the day then decreasing to 25 to 40 km/h in the evening. Daytime maximum temperatures between 18 and 22.

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  • Temperature Forecast Bureau of Meteorology

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Dumbarton Temperature Statistics View More

September Temperature

Northam (18km)

  • Lowest 1 September, 2025

    1.5 °C

  • Average September

    11.4 °C

  • Highest 12 September, 2025

    25.6 °C

Climate (2020–Present)

Northam (18km)

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  • Average Low 2020–2025

    11.6 °C

  • Average 2020–2025

    17.5 °C

  • Average High 2020–2025

    26.4 °C
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