Sylvan - Highlands - Southwest Hills Weather Forecast

    • 41
    • 49

    Rain Showers

    • 43
    • 52

    Chance Rain Showers

    • 45
    • 55

    Rain Showers

    • 43
    • 56

    Slight Chance Rain Showers

    • 46
    • 58

    Chance Rain

    • 49
    • 55

    Rain

    • 46
    • 58

    Rain Likely

Today 26 Oct West Hills and Chehalem Mountains

Showers this Morning, then Showers with a slight chance of Thunderstorms this afternoon. Highs in the lower 50s. South wind 10 to 15 Mph, becoming southwest this afternoon. Chance of rain near 100 percent. Rainfall Amounts a quarter to a half of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 26 Oct West Hills and Chehalem Mountains

Rain Showers likely with a slight chance of Thunderstorms. Lows around 40. Southwest wind 5 to 10 Mph. Chance of rain 70 percent. Rainfall Amounts less than a tenth of an Inch, except higher Amounts possible in Thunderstorms.

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Sylvan - Highlands - Southwest Hills Temperature Statistics

October Temperature

Portland, Portland International Airport (8.1 miles)

  • Lowest 15 October, 2025

    39 °F

  • Average October

    55.7 °F

  • Highest 7 October, 2025

    79 °F

Climate (2020–Present)

Portland, Portland International Airport (8.1 miles)

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  • Average Low 2020–2025

    48.3 °F

  • Average 2020–2025

    56.1 °F

  • Average High 2020–2025

    65.3 °F
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