Knappa Slough - Knappa Weather Forecast

    • 38
    • 49

    Decreasing Clouds

    • 37
    • 52

    Partly Sunny

    • 38
    • 51

    Mostly Cloudy

    • 42
    • 49

    Rain

    • 40
    • 52

    Rain Likely

    • 41
    • 50

    Rain Likely

Today 29 Dec North Oregon Coast Range Lowlands

Widespread frost this morning. Partly sunny. Highs in the upper 40s. Winds light.

Tonight 29 Dec North Oregon Coast Range Lowlands

Partly cloudy. Areas of frost in the evening. Widespread frost after midnight. Lows in the mid 30s. Winds light.

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Knappa Slough - Knappa Temperature Statistics

December Temperature

Astoria, Astoria Regional Airport (13.7 miles)

  • Lowest 26 December, 2025

    34 °F

  • Average December

    48.4 °F

  • Highest 15 December, 2025

    57.9 °F

Climate (2020–Present)

Astoria, Astoria Regional Airport (13.7 miles)

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  • Average Low 2020–2025

    45.9 °F

  • Average 2020–2025

    52.4 °F

  • Average High 2020–2025

    59.5 °F
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