Sullivan's Gulch Weather Forecast

    • 35
    • 44

    Mostly Cloudy

    • 34
    • 47

    Mostly Cloudy

    • 33
    • 47

    Mostly Cloudy

    • 36
    • 47

    Mostly Cloudy

    • 41
    • 49

    Rain Likely

    • 37
    • 49

    Rain Likely

Today 28 Dec Inner Portland Metro

Patchy frost in the morning. Partly sunny. Highs in the mid 40s. Winds light.

Tonight 28 Dec Inner Portland Metro

Mostly cloudy. Widespread frost after midnight. Lows in the lower 30s. Winds light.

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Sullivan's Gulch Temperature Statistics

December Temperature

Portland, Portland International Airport (4.3 miles)

  • Lowest 1 December, 2025

    33.1 °F

  • Average December

    49 °F

  • Highest 10 December, 2025

    62.1 °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

    56.3 °F

  • Average High 2020–2025

    65.4 °F
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