Hillsboro Weather Forecast

    • 47
    • 58

    Rain Showers Likely

    • 44
    • 57

    Rain

    • 42
    • 62

    Partly Sunny

    • 43
    • 70

    Sunny

    • 42
    • 70

    Mostly Sunny

    • 44
    • 66

    Partly Sunny

Today 21 Apr Tualatin Valley

Showers likely. Highs in the upper 50s. Winds light. Chance of rain 70 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 21 Apr Tualatin Valley

Mostly cloudy. A slight chance of Showers in the Evening, then a chance of rain after midnight. Lows in the mid 40s. Winds light. Chance of rain 40 percent. Rainfall Amounts less than a tenth of an inch.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hillsboro Temperature Statistics

April Temperature

Portland-Hillsboro Airport (1.9 miles)

  • Lowest 16 April, 2026

    32.6 °F

  • Average April

    52.7 °F

  • Highest 5 April, 2026

    79.6 °F

Climate (2021–Present)

Portland-Hillsboro Airport (1.9 miles)

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  • Average Low 2021–2026

    43.4 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    64.6 °F
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