Government Island State Park Weather Forecast

    • 51
    • 57

    Rain

    • 54
    • 59

    Rain

    • 51
    • 58

    Chance Rain

    • 48
    • 58

    Mostly Cloudy

    • 48
    • 56

    Rain Likely

    • 46
    • 54

    Rain Likely

Today 9 Dec Inner Portland Metro

Rain. Highs in the upper 50s. Northwest wind 5 to 10 Mph, becoming southwest in the afternoon. Chance of rain near 100 percent. Rainfall Amounts three Quarters of an inch to one inch.

Tonight 9 Dec Inner Portland Metro

Rain. Lows in the lower 50s. Southwest wind 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain near 100 percent. Rainfall Amounts around a half of an inch.

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Government Island State Park Temperature Statistics

December Temperature

Portland, Portland International Airport (4.3 miles)

  • Lowest 1 December, 2025

    33.1 °F

  • Average December

    46 °F

  • Highest 5 December, 2025

    57.9 °F

Climate (2020–Present)

Portland, Portland International Airport (4.3 miles)

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  • Average Low 2020–2025

    48.4 °F

  • Average 2020–2025

    56.2 °F

  • Average High 2020–2025

    65.4 °F
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