Ainsworth State Park Weather Forecast

    • 50
    • 60

    Chance Rain Showers

    • 55
    • 71

    Partly Sunny

    • 51
    • 71

    Chance Rain

    • 46
    • 59

    Chance Rain

    • 45
    • 60

    Partly Sunny

    • 46
    • 66

    Mostly Sunny

Today 26 May West Columbia River Gorge I-84 Corridor

Mostly cloudy with a slight chance of Showers in the Morning, then partly sunny with a chance of Showers in the afternoon. Highs in the mid 60s. West wind 5 to 10 Mph. Chance of rain 30 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 26 May West Columbia River Gorge I-84 Corridor

Mostly cloudy with a 20 percent chance of Showers. Lows in the upper 40s. Winds light.

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Ainsworth State Park Temperature Statistics

May Temperature

Portland, Portland-Troutdale Airport (17.4 miles)

  • Lowest 15 May, 2026

    44.7 °F

  • Average May

    61.4 °F

  • Highest 3 May, 2026

    91.7 °F

Climate (2021–Present)

Portland, Portland-Troutdale Airport (17.4 miles)

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  • Average Low 2021–2026

    47.7 °F

  • Average 2021–2026

    56.3 °F

  • Average High 2021–2026

    65.3 °F
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