Columbia River - Tenasillahe Island Weather Forecast

    • 54
    • 75

    Becoming Sunny

    • 58
    • 77

    Partly Sunny

    • 54
    • 65

    Mostly Cloudy

    • 52
    • 64

    Slight Chance Rain

    • 53
    • 65

    Chance Rain

    • 53
    • 69

    Partly Sunny

Today 8 Sep Clatsop County Coast

Sunny. Highs in the mid 70s. Winds Light, rising to north 10 to 15 Mph this afternoon.

Tonight 8 Sep Clatsop County Coast

Mostly clear. Lows in the lower 50s. North wind 10 to 15 Mph, becoming light after midnight.

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Columbia River - Tenasillahe Island Temperature Statistics

September Temperature

Astoria, Astoria Regional Airport (19.9 miles)

  • Lowest 5 September, 2026

    50.6 °F

  • Average September

    60.7 °F

  • Highest 4 September, 2026

    70.6 °F

Climate (2021–2026)

Astoria, Astoria Regional Airport (19.9 miles)

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  • Average Low 2021–2026

    46.1 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    59.9 °F
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