Willamette River - Portland Morrison Street Bridge Weather Forecast

    • 56
    • 81

    Increasing Clouds

    • 56
    • 77

    Mostly Cloudy

    • 54
    • 73

    Mostly Cloudy

    • 53
    • 71

    Mostly Cloudy

    • 54
    • 71

    Mostly Cloudy

    • 51
    • 66

    Partly Sunny

Today 20 Sep Inner Portland Metro

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

Tonight 20 Sep Inner Portland Metro

Mostly clear. Lows in the mid 50s. Winds light in the Evening, becoming light and variable.

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  • Temperature Real-Time

Willamette River - Portland Morrison Street Bridge Temperature Statistics

September Temperature

Portland, Portland International Airport (5.6 miles)

  • Lowest 8 September, 2026

    51.7 °F

  • Average September

    64.8 °F

  • Highest 9 September, 2026

    88.6 °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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