Waihou Spring Forest Reserve Weather Forecast

    • 61
    • 75

    Partly Sunny

    • 63
    • 75

    Mostly Cloudy

    • 63
    • 76

    Mostly Cloudy

    • 64
    • 74

    Rain Showers

    • 63
    • 73

    Rain Showers

    • 62
    • 73

    Isolated Thunderstorms

    • 61
    • 73

    Mostly Cloudy

Today 20 Sep Windward Haleakala

Partly sunny in the morning then becoming mostly sunny. Breezy. Scattered Showers. Highs 65 to 83. East Winds 15 to 20 Mph. Chance of rain 40 percent.

Tonight 20 Sep Windward Haleakala

Breezy. Mostly cloudy with scattered Showers. Lows around 74 near the shore to around 58 near 5000 feet. East Winds up to 20 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

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Waihou Spring Forest Reserve Temperature Statistics

September Temperature

Kahului, Kahului Airport (11.8 miles)

  • Lowest 12 September, 2026

    66.9 °F

  • Average September

    80 °F

  • Highest 15 September, 2026

    91 °F

Climate (2021–2026)

Kahului, Kahului Airport (11.8 miles)

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  • Average Low 2021–2026

    69 °F

  • Average 2021–2026

    76.7 °F

  • Average High 2021–2026

    85.3 °F
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