Sylvan - Highlands - Southwest Hills Weather Forecast

    • 52
    • 65

    Decreasing Clouds

    • 50
    • 66

    Mostly Cloudy

    • 49
    • 65

    Mostly Cloudy

    • 53
    • 69

    Mostly Cloudy

    • 53
    • 73

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

Today 29 Jun West Hills and Chehalem Mountains

Mostly cloudy. Highs in the upper 60s. Winds light.

Tonight 29 Jun West Hills and Chehalem Mountains

Partly cloudy. Lows in the lower 50s. West wind 5 to 10 Mph.

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Sylvan - Highlands - Southwest Hills Temperature Statistics

June Temperature

Portland, Portland International Airport (8.1 miles)

  • Lowest 11 June, 2026

    49.6 °F

  • Average June

    67.9 °F

  • Highest 15 June, 2026

    97.6 °F

Climate (2021–2026)

Portland, Portland International Airport (8.1 miles)

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  • Average Low 2021–2026

    48.4 °F

  • Average 2021–2026

    56.4 °F

  • Average High 2021–2026

    65.5 °F
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