Columbia River - Ackerman Island Weather Forecast

    • 48
    • 56

    Rain

    • 47
    • 54

    Rain

    • 49
    • 56

    Rain

    • 49
    • 58

    Rain

    • 47
    • 54

    Rain

    • 48
    • 58

    Rain

Today 5 Dec East Clark County Lowlands

Rain. Highs in the mid 50s. Southwest wind 15 to 20 Mph with Gusts up to 40 Mph. Chance of rain near 100 percent. Rainfall Amounts a quarter to a half of an inch.

Tonight 5 Dec East Clark County Lowlands

Showers. A slight chance of Thunderstorms after midnight. Lows in the upper 40s. Southwest wind 15 to 20 Mph with Gusts up to 40 Mph. Chance of rain near 100 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

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Columbia River - Ackerman Island Temperature Statistics

December Temperature

Portland, Portland-Troutdale Airport (2.5 miles)

  • Lowest 1 December, 2025

    35.1 °F

  • Average December

    41.7 °F

  • Highest 1 December, 2025

    46.9 °F

Climate (2020–Present)

Portland, Portland-Troutdale Airport (2.5 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    56.1 °F

  • Average High 2020–2025

    65.2 °F
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