Ainsworth State Park Weather Forecast

    • 57
    • 81

    Increasing Clouds

    • 57
    • 65

    Rain Likely

    • 55
    • 60

    Rain

    • 53
    • 60

    Rain Showers

    • 55
    • 64

    Rain Likely

    • 57
    • 68

    Chance Rain

Today 31 Aug West Columbia River Gorge I-84 Corridor

Sunny. Highs in the upper 80s. Northeast wind 10 to 15 Mph.

Tonight 31 Aug West Columbia River Gorge I-84 Corridor

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 50s. Southwest wind 5 to 10 Mph.

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Ainsworth State Park Temperature Statistics

August Temperature

Portland, Portland-Troutdale Airport (17.4 miles)

  • Lowest 3 August, 2026

    50.6 °F

  • Average August

    71.3 °F

  • Highest 6 August, 2026

    96.7 °F

Climate (2021–2026)

Portland, Portland-Troutdale Airport (17.4 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    56.2 °F

  • Average High 2021–2026

    65.3 °F
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