Beaver Slough - Anunde Island Weather Forecast

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    Rain Showers

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    Rain

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    Rain

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    Rain

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    Rain

Today 16 Dec Lower Columbia River

A chance of rain this Morning, then rain likely this afternoon. Highs in the upper 50s. South wind 10 to 15 Mph. Chance of rain 70 percent. Rainfall Amounts a tenth to a quarter of an inch.

Tonight 16 Dec Lower Columbia River

Showers with a slight chance of Thunderstorms. Lows in the lower 40s. South wind 15 to 20 Mph, becoming west after midnight. Gusts up to 45 Mph. Chance of rain near 100 percent. Rainfall Amounts a quarter to three Quarters of an Inch, except higher Amounts possible in Thunderstorms.

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Beaver Slough - Anunde Island Temperature Statistics

December Temperature

Southwest Washington Regional Airport (15.5 miles)

  • Lowest 1 December, 2025

    35.1 °F

  • Average December

    49.1 °F

  • Highest 10 December, 2025

    57.9 °F

Climate (2020–Present)

Southwest Washington Regional Airport (15.5 miles)

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  • Average Low 2020–2025

    45.1 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    62.4 °F
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