Hillsboro Weather Forecast

    • 40
    • 69

    Mostly Sunny

    • 41
    • 71

    Mostly Sunny

    • 46
    • 72

    Partly Sunny

    • 44
    • 78

    Mostly Sunny

    • 42
    • 69

    Mostly Sunny

    • 46
    • 72

    Partly Sunny

Today 8 Sep Western And Central Hillsborough

Areas of fog this morning. Mostly sunny. Visibility one quarter mile or less at Times this morning. Highs around 70. Light and variable Winds, becoming northwest around 10 Mph this afternoon.

Tonight 8 Sep Western And Central Hillsborough

Mostly clear. Lows in the lower 40s. Light and variable Winds.

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Hillsboro Temperature Statistics

September Temperature

Concord Municipal Airport (20.5 miles)

  • Lowest 1 September, 2025

    48 °F

  • Average September

    66.8 °F

  • Highest 4 September, 2025

    82 °F

Climate (2020–Present)

Concord Municipal Airport (20.5 miles)

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  • Average Low 2020–2025

    38.6 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    60.1 °F
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