Hillsboro Weather Forecast

    • 54
    • 79

    Rain Showers

    • 38
    • 72

    Mostly Sunny

    • 35
    • 67

    Mostly Sunny

    • 47
    • 70

    Partly Sunny

    • 53
    • 75

    Partly Sunny

    • 57
    • 81

    Partly Sunny

Today 18 Sep Western And Central Hillsborough

Partly sunny. Isolated Showers in the morning. Highs in the upper 70s. Light and variable Winds. Chance of rain 20 percent.

Tonight 18 Sep Western And Central Hillsborough

Mostly cloudy with scattered Showers with isolated Thunderstorms. Lows in the lower 50s. Light and variable Winds. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hillsboro Temperature Statistics

September Temperature

Concord Municipal Airport (20.5 miles)

  • Lowest 9 September, 2025

    41 °F

  • Average September

    62.7 °F

  • Highest 6 September, 2025

    82.9 °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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