Portland Airport Weather Forecast

    • 10
    • 16

    Showers

    • 8
    • 13

    Showers. Windy

    • 6
    • 12

    Showers

    • 6
    • 11

    Showers

    • 5
    • 13

    Showers easing

    • 8
    • 14

    Showers

    • 7
    • 15

    Shower or two

Today 26 Aug South West

Cloudy. Very high chance of showers, most likely in the morning and afternoon. The chance of a thunderstorm in the afternoon and evening. Damaging winds possible near the Grampians. Winds northerly 25 to 40 km/h turning northwesterly 20 to 30 km/h in the early afternoon. Overnight temperatures falling to around 10 with daytime temperatures reaching between 13 and 17.

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  • Temperature Forecast Bureau of Meteorology

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Portland Airport Temperature Statistics View More

August Temperature

Portland Airport (0km)

  • Lowest 20 August, 2025

    0.3 °C

  • Average August

    10.1 °C

  • Highest 21 August, 2025

    18.6 °C

Climate (2020–Present)

Portland Airport (0km)

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  • Average Low 2020–2025

    9.7 °C

  • Average 2020–2025

    13.5 °C

  • Average High 2020–2025

    18.1 °C
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