Arch Cape Weather Forecast

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    Rain Showers

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    Rain

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    Rain

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    Rain

Today 14 Dec Clatsop County Coast

Mostly cloudy with a 50 percent chance of rain. Highs in the upper 50s. South wind 10 to 15 Mph. Rainfall Amounts around a tenth of an inch.

Tonight 14 Dec Clatsop County Coast

A slight chance of Thunderstorms. Rain likely in the Evening, then Showers after midnight. Breezy with Lows in the lower 50s. South wind 10 to 15 Mph, except south wind 20 to 25 Mph near Beaches and Headlands. Gusts up to 35 Mph, increasing to 45 Mph after midnight. Chance of rain near 100 percent. Rainfall Amounts a quarter to a half of an Inch, except higher Amounts possible in Thunderstorms.

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Arch Cape Temperature Statistics

December Temperature

Astoria, Astoria Regional Airport (23.6 miles)

  • Lowest 1 December, 2025

    37.4 °F

  • Average December

    50.2 °F

  • Highest 6 December, 2025

    57.2 °F

Climate (2020–Present)

Astoria, Astoria Regional Airport (23.6 miles)

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  • Average Low 2020–2025

    45.8 °F

  • Average 2020–2025

    52.4 °F

  • Average High 2020–2025

    59.5 °F
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