Knappa Slough - Knappa Weather Forecast

    • 45
    • 61

    Chance Rain Showers

    • 49
    • 65

    Partly Sunny

    • 53
    • 62

    Rain Showers

    • 54
    • 63

    Rain

    • 49
    • 59

    Rain

    • 45
    • 55

    Rain

Today 20 Oct North Oregon Coast Range Lowlands

Patchy fog this morning. Mostly sunny with a 20 percent chance of rain Showers. Highs in the lower 60s. Winds light.

Tonight 20 Oct North Oregon Coast Range Lowlands

Mostly clear. Patchy fog. Lows in the lower 40s. Winds light in the Evening, becoming light and variable.

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Knappa Slough - Knappa Temperature Statistics

October Temperature

Astoria, Astoria Regional Airport (13.7 miles)

  • Lowest 15 October, 2025

    37 °F

  • Average October

    54.8 °F

  • Highest 6 October, 2025

    73.9 °F

Climate (2020–Present)

Astoria, Astoria Regional Airport (13.7 miles)

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  • Average Low 2020–2025

    45.6 °F

  • Average 2020–2025

    52.2 °F

  • Average High 2020–2025

    59.5 °F
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