Portland International Jetport Weather Forecast

    • 47
    • 65

    Chance Rain Showers

    • 43
    • 63

    Rain Showers

    • 40
    • 60

    Mostly Sunny

    • 38
    • 58

    Chance Rain Showers

    • 36
    • 56

    Partly Sunny

    • 34
    • 54

    Partly Sunny

    • 35
    • 54

    Slight Chance Rain Showers

Today 21 Oct Coastal Cumberland

Mostly sunny. Highs in the mid 60s. Southwest Winds around 10 Mph with Gusts up to 25 Mph.

Tonight 21 Oct Coastal Cumberland

Mostly clear this Evening, then becoming partly cloudy. Lows in the mid 40s. Southwest Winds around 10 Mph this Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Portland International Jetport Temperature Statistics

October Temperature

Portland, Portland International Jetport (0 miles)

  • Lowest 10 October, 2025

    32 °F

  • Average October

    54.3 °F

  • Highest 6 October, 2025

    84.9 °F

Climate (2020–Present)

Portland, Portland International Jetport (0 miles)

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  • Average Low 2020–2025

    40.5 °F

  • Average 2020–2025

    49 °F

  • Average High 2020–2025

    57.4 °F
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