Big Island Airport Weather Forecast

    • 54
    • 84

    Mostly Sunny

    • 54
    • 84

    Mostly Sunny

    • 54
    • 84

    Mostly Sunny

    • 45
    • 67

    Chance Rain

    • 48
    • 72

    Sunny

    • 52
    • 82

    Mostly Sunny

    • 52
    • 82

    Slight Chance Rain

Today 18 Sep Northern Clearwater Mountains

Sunny. Highs in the upper 70s to mid 80s.

Tonight 18 Sep Northern Clearwater Mountains

Partly cloudy. Lows in the 40s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Island Airport Temperature Statistics

September Temperature

Lowell (42.3 miles)

  • Lowest 16 September, 2025

    51.1 °F

  • Average September

    63.1 °F

  • Highest 2 September, 2025

    91 °F

Climate (2020–Present)

Lowell (42.3 miles)

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  • Average Low 2020–2025

    41 °F

  • Average 2020–2025

    50.5 °F

  • Average High 2020–2025

    62.2 °F
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