Cathlamet Bay - Russian Island Weather Forecast

    • 55
    • 62

    Becoming Sunny

    • 56
    • 69

    Mostly Sunny

    • 57
    • 68

    Mostly Sunny

    • 56
    • 65

    Mostly Cloudy

    • 56
    • 65

    Partly Sunny

    • 56
    • 65

    Partly Sunny

Today 15 Sep Clatsop County Coast

Mostly cloudy this Morning, then becoming mostly sunny. Patchy fog this morning. Highs in the mid 60s. Northwest wind 5 to 10 Mph.

Tonight 15 Sep Clatsop County Coast

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

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Cathlamet Bay - Russian Island Temperature Statistics

September Temperature

Astoria, Astoria Regional Airport (10.6 miles)

  • Lowest 8 September, 2026

    48.7 °F

  • Average September

    60.3 °F

  • Highest 9 September, 2026

    77.6 °F

Climate (2021–2026)

Astoria, Astoria Regional Airport (10.6 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    59.9 °F
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