Ainsworth State Park Weather Forecast

    • 54
    • 73

    Increasing Clouds

    • 49
    • 65

    Mostly Cloudy

    • 52
    • 75

    Mostly Sunny

    • 54
    • 77

    Chance Rain

    • 51
    • 71

    Slight Chance Rain

    • 48
    • 67

    Rain Likely

Today 9 May West Columbia River Gorge I-84 Corridor

Mostly sunny. Highs in the upper 70s. North wind 5 to 10 Mph.

Tonight 9 May West Columbia River Gorge I-84 Corridor

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the mid 50s. Winds light.

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Ainsworth State Park Temperature Statistics

May Temperature

Portland, Portland-Troutdale Airport (17.4 miles)

  • Lowest 1 May, 2026

    46.7 °F

  • Average May

    63.5 °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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