Hillsboro Weather Forecast

    • 54
    • 79

    Decreasing Clouds

    • 53
    • 82

    Becoming Sunny

    • 54
    • 82

    Mostly Sunny

    • 59
    • 87

    Mostly Sunny

    • 54
    • 76

    Partly Sunny

    • 54
    • 75

    Mostly Sunny

    • 58
    • 83

    Mostly Sunny

Today 28 Jul Tualatin Valley

Partly sunny. Highs around 80. Winds light.

Tonight 28 Jul Tualatin Valley

Mostly clear this Evening, then becoming partly cloudy. Lows in the lower 50s. Winds light.

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Hillsboro Temperature Statistics

July Temperature

Portland-Hillsboro Airport (1.9 miles)

  • Lowest 2 July, 2026

    44.7 °F

  • Average July

    68.3 °F

  • Highest 21 July, 2026

    100.7 °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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