Columbia River - Kalama River Entrance Weather Forecast

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    Rain

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    • 55

    Rain

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    Rain

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    Rain Likely

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    Rain

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    Rain Likely

Today 17 Dec Cowlitz County Lowlands

A slight chance of Thunderstorms. Rain in the Morning, then rain Showers in the afternoon. Highs in the upper 40s. Southwest wind 5 to 10 Mph. Chance of rain 90 percent. Rainfall Amounts a tenth to a quarter of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 17 Dec Cowlitz County Lowlands

Rain. Lows in the upper 30s. South wind 5 to 10 Mph. Chance of rain near 100 percent. Rainfall Amounts around a quarter of an inch.

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Columbia River - Kalama River Entrance Temperature Statistics

December Temperature

Southwest Washington Regional Airport (5.6 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 (5.6 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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