Columbia River - Government Island Weather Forecast

    • 48
    • 66

    Rain Likely

    • 49
    • 66

    Chance Rain

    • 51
    • 71

    Partly Sunny

Today 25 May Inner Portland Metro

Mostly cloudy. Showers with a slight chance of Thunderstorms in the afternoon. Highs in the upper 60s. Southwest wind 10 to 15 Mph. Chance of rain 90 percent. Rainfall Amounts around a tenth of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 25 May Inner Portland Metro

Mostly cloudy. Lows in the mid 50s. Winds light.

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Columbia River - Government Island Temperature Statistics

May Temperature

Portland, Portland International Airport (5 miles)

  • Lowest 17 May, 2026

    41.6 °F

  • Average May

    62.2 °F

  • Highest 3 May, 2026

    91.7 °F

Climate (2021–Present)

Portland, Portland International Airport (5 miles)

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  • Average Low 2021–2026

    48.4 °F

  • Average 2021–2026

    56.4 °F

  • Average High 2021–2026

    65.6 °F
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