Columbia River - Griffith Island Weather Forecast

    • 54
    • 78

    Decreasing Clouds

    • 55
    • 80

    Mostly Sunny

    • 54
    • 75

    Partly Sunny

    • 52
    • 72

    Partly Sunny

    • 53
    • 73

    Partly Sunny

    • 54
    • 75

    Slight Chance Rain

Today 19 Sep Lower Columbia River

Mostly cloudy in the Morning, then becoming mostly sunny. Highs around 80. Light and variable Winds, becoming light in the afternoon.

Tonight 19 Sep Lower Columbia River

Mostly clear. Lows in the lower 50s. Winds light.

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Columbia River - Griffith Island Temperature Statistics

September Temperature

Scappoose Industrial Airpark (4.3 miles)

  • Lowest 4 September, 2026

    49.6 °F

  • Average September

    62.1 °F

  • Highest 9 September, 2026

    87.7 °F

Climate (2021–2026)

Scappoose Industrial Airpark (4.3 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    63.4 °F
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