Hillsboro Weather Forecast

    • 46
    • 61

    Rain

    • 54
    • 64

    Rain Likely

    • 48
    • 68

    Rain Likely

    • 48
    • 67

    Mostly Sunny

    • 50
    • 74

    Mostly Sunny

    • 50
    • 77

    Mostly Sunny

Today 28 Sep Greater Portland Metro Area

Showers in the Morning, then Showers and a slight chance of Thunderstorms in the afternoon. Highs 55 to 60. Southwest wind 5 to 15 Mph. Chance of precipitation 90 percent. Rainfall Amounts a tenth to a quarter of an Inch, except higher Amounts possible in Thunderstorms.

Tonight 28 Sep Greater Portland Metro Area

Partly cloudy. Slight chance of Thunderstorms in the evening. Slight chance of Showers in the evening. Slight chance of rain after midnight. Lows 45 to 50. South wind 5 to 10 Mph. Chance of precipitation 20 percent.

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Hillsboro Temperature Statistics

September Temperature

Portland-Hillsboro Airport (1.9 miles)

  • Lowest 16 September, 2021

    39 °F
  • Average September

    63 °F
  • Highest 4 September, 2021

    87.1 °F

Climate (2010–Present)

Portland-Hillsboro Airport (1.9 miles)

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  • Average Low 2010–Present

    43.6 °F
  • Average 2010–Present

    53.4 °F
  • Average High 2010–Present

    64.5 °F
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