Hillsboro Weather Forecast

    • 53
    • 81

    Mostly Sunny

    • 52
    • 82

    Mostly Sunny

    • 46
    • 67

    Mostly Cloudy

    • 42
    • 63

    Chance Rain

    • 43
    • 64

    Mostly Sunny

    • 44
    • 67

    Mostly Sunny

Today 7 Oct Tualatin Valley

Sunny. Highs in the lower 80s. Winds light.

Tonight 7 Oct Tualatin Valley

Clear. Lows in the lower 50s. Winds light.

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Hillsboro Temperature Statistics

October Temperature

Portland-Hillsboro Airport (1.9 miles)

  • Lowest 4 October, 2026

    46.9 °F

  • Average October

    64.2 °F

  • Highest 4 October, 2026

    82.9 °F

Climate (2021–2026)

Portland-Hillsboro Airport (1.9 miles)

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  • Average Low 2021–2026

    43.5 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    64.4 °F
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