West Haven-Sylvan Weather Forecast

    • 54
    • 78

    Mostly Sunny

    • 53
    • 75

    Partly Sunny

    • 53
    • 78

    Partly Sunny

    • 57
    • 75

    Chance Rain Showers

    • 55
    • 72

    Chance Rain Showers

    • 56
    • 76

    Partly Sunny

Today 17 Sep West Hills and Chehalem Mountains

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

Tonight 17 Sep West Hills and Chehalem Mountains

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 50s. Northwest wind 5 to 10 Mph.

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West Haven-Sylvan Temperature Statistics

September Temperature

Pearson Airfield (8.7 miles)

  • Lowest 15 September, 2025

    48 °F

  • Average September

    67.7 °F

  • Highest 2 September, 2025

    90 °F

Climate (2020–Present)

Pearson Airfield (8.7 miles)

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  • Average Low 2020–2025

    46.4 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    64.5 °F
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