Ainsworth State Park Weather Forecast

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    Rain

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    Rain

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    Rain

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    Rain

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    Rain

Today 16 Dec West Columbia River Gorge I-84 Corridor

A chance of rain this Morning, then rain likely this afternoon. Highs in the upper 50s. Southwest wind 15 to 20 Mph with Gusts up to 40 Mph. Chance of rain 70 percent. Rainfall Amounts a tenth to a quarter of an inch.

Tonight 16 Dec West Columbia River Gorge I-84 Corridor

A slight chance of Thunderstorms. Showers in the Evening, then rain after midnight. Very windy with Lows in the lower 40s. Southwest wind 30 to 40 Mph with Gusts up to 65 Mph. Chance of rain near 100 percent. Rainfall Amounts a half of an inch to one Inch, except higher Amounts possible in Thunderstorms.

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Ainsworth State Park Temperature Statistics

December Temperature

Portland, Portland-Troutdale Airport (17.4 miles)

  • Lowest 1 December, 2025

    35.1 °F

  • Average December

    49.9 °F

  • Highest 10 December, 2025

    64 °F

Climate (2020–Present)

Portland, Portland-Troutdale Airport (17.4 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    56.2 °F

  • Average High 2020–2025

    65.2 °F
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