Knappa Weather Forecast

    • 58
    • 71

    Mostly Sunny

    • 56
    • 84

    Mostly Sunny

    • 54
    • 70

    Partly Sunny

    • 55
    • 70

    Partly Sunny

    • 56
    • 73

    Partly Sunny

    • 57
    • 70

    Chance Rain

Today 15 Sep North Oregon Coast Range Lowlands

Patchy fog this morning. Sunny. Highs in the lower 70s. Winds light.

Tonight 15 Sep North Oregon Coast Range Lowlands

Mostly clear. Lows in the mid 50s. Northeast wind 5 to 10 Mph.

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Knappa Temperature Statistics

September Temperature

Astoria, Astoria Regional Airport (14.3 miles)

  • Lowest 2 September, 2025

    51.1 °F

  • Average September

    61.2 °F

  • Highest 2 September, 2025

    73.9 °F

Climate (2020–Present)

Astoria, Astoria Regional Airport (14.3 miles)

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  • Average Low 2020–2025

    45.7 °F

  • Average 2020–2025

    52.3 °F

  • Average High 2020–2025

    59.5 °F
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