Sylvan - Highlands - Southwest Hills Weather Forecast

    • 40
    • 47

    Slight Chance Rain

    • 41
    • 49

    Mostly Cloudy

    • 39
    • 50

    Mostly Cloudy

    • 39
    • 51

    Partly Sunny

    • 39
    • 50

    Partly Sunny

    • 39
    • 52

    Mostly Sunny

    • 37
    • 52

    Mostly Sunny

Today 10 Jan West Hills and Chehalem Mountains

Mostly cloudy. Highs in the upper 40s. Winds light.

Tonight 10 Jan West Hills and Chehalem Mountains

Mostly cloudy. A chance of rain after midnight. Lows in the upper 30s. Winds light. Chance of rain 40 percent.

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Sylvan - Highlands - Southwest Hills Temperature Statistics

January Temperature

Portland, Portland International Airport (8.1 miles)

  • Lowest 5 January, 2026

    35.1 °F

  • Average January

    42.8 °F

  • Highest 4 January, 2026

    53.1 °F

Climate (2021–Present)

Portland, Portland International Airport (8.1 miles)

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  • Average Low 2021–2026

    48.4 °F

  • Average 2021–2026

    56.2 °F

  • Average High 2021–2026

    65.4 °F
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