Iao Valley State Park Weather Forecast

    • 59
    • 72

    Rain Showers

    • 58
    • 71

    Rain Showers

    • 58
    • 69

    Rain Showers

    • 58
    • 69

    Rain Showers

    • 58
    • 70

    Rain Showers

    • 58
    • 70

    Rain Showers

    • 58
    • 70

    Rain Showers

Today 20 May Maui Windward West

Breezy. Partly sunny with scattered Showers in the Morning, then mostly sunny with isolated Showers in the afternoon. Highs around 79 Makai to around 63 Mauka. Northeast Winds 10 to 25 Mph. Chance of rain 50 percent.

Tonight 20 May Maui Windward West

Breezy. Partly cloudy with isolated Showers. Lows 64 to 72 Makai to around 56 Mauka. East Winds 15 to 25 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Iao Valley State Park Temperature Statistics

May Temperature

Kahului, Kahului Airport (6.8 miles)

  • Lowest 6 May, 2026

    64.9 °F

  • Average May

    76.4 °F

  • Highest 17 May, 2026

    89.1 °F

Climate (2021–Present)

Kahului, Kahului Airport (6.8 miles)

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  • Average Low 2021–2026

    68.9 °F

  • Average 2021–2026

    76.7 °F

  • Average High 2021–2026

    85.4 °F
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