Ainsworth State Park Weather Forecast

    • 50
    • 56

    Rain

    • 52
    • 56

    Rain

    • 51
    • 54

    Rain Likely

    • 47
    • 55

    Chance Rain

    • 47
    • 55

    Rain Likely

    • 46
    • 50

    Rain Likely

Today 9 Dec West Columbia River Gorge I-84 Corridor

Rain. Highs in the upper 50s. Southwest wind 15 to 20 Mph. Chance of rain near 100 percent. Rainfall Amounts three Quarters of an inch to one and a half Inches.

Tonight 9 Dec West Columbia River Gorge I-84 Corridor

Rain. Rain may be heavy at Times. Windy with Lows in the lower 50s. Southwest wind 25 to 35 Mph with Gusts up to 55 Mph. Chance of rain near 100 percent. Rainfall Amounts a half of an inch to two Inches.

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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

    46.3 °F

  • Highest 7 December, 2025

    59 °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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