Hillsboro Weather Forecast

    • 57
    • 91

    Increasing Clouds

    • 57
    • 90

    Rain Showers Likely

    • 53
    • 78

    Rain Showers Likely

    • 55
    • 83

    Mostly Sunny

    • 57
    • 86

    Mostly Sunny

    • 59
    • 91

    Mostly Sunny

    • 62
    • 94

    Partly Sunny

Today 14 Jul Tualatin Valley

Sunny. Highs in the lower 90s. Winds light.

Tonight 14 Jul Tualatin Valley

Mostly clear this Evening, then becoming partly cloudy. Lows in the mid 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

    65.9 °F

  • Highest 6 July, 2026

    89.7 °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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