Portland Airport Weather Forecast

    • 6
    • 16

    Possible shower

    • 10
    • 25

    Partly cloudy

    • 14
    • 21

    Showers

    • 11
    • 18

    Showers easing

    • 9
    • 14

    Possible shower

    • 8
    • 15

    Partly cloudy

    • 8
    • 15

    Partly cloudy

Today 28 Sep South West

Partly cloudy. Medium chance of showers in the west, most likely in the late afternoon and evening. Near zero chance of rain elsewhere. Winds easterly 15 to 20 km/h becoming light in the early afternoon then becoming east to northeasterly 15 to 20 km/h in the late afternoon. Daytime maximum temperatures between 17 and 20.

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Portland Airport Temperature Statistics View More

September Temperature

Portland Airport (0km)

  • Lowest 22 September, 2026

    0.7 °C

  • Average September

    11.9 °C

  • Highest 20 September, 2026

    24.7 °C

Climate (2021–2026)

Portland Airport (0km)

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  • Average Low 2021–2026

    9.7 °C

  • Average 2021–2026

    13.5 °C

  • Average High 2021–2026

    18.2 °C
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