Willamette River - Portland Morrison Street Bridge Weather Forecast

    • 59
    • 82

    Decreasing Clouds

    • 59
    • 78

    Partly Sunny

    • 59
    • 78

    Partly Sunny

    • 61
    • 86

    Mostly Sunny

    • 59
    • 84

    Partly Sunny

    • 57
    • 79

    Partly Sunny

Today 21 Aug Inner Portland Metro

Cloudy. Highs in the lower 80s. Winds light.

Tonight 21 Aug Inner Portland Metro

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the upper 50s. Winds light.

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Willamette River - Portland Morrison Street Bridge Temperature Statistics

August Temperature

Portland, Portland International Airport (5.6 miles)

  • Lowest 3 August, 2026

    55.7 °F

  • Average August

    72 °F

  • Highest 6 August, 2026

    94.6 °F

Climate (2021–2026)

Portland, Portland International Airport (5.6 miles)

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  • Average Low 2021–2026

    48.3 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    65.4 °F
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