Coasters Harbor Island Weather Forecast

    • 64
    • 72

    Becoming Sunny

    • 57
    • 75

    Mostly Sunny

    • 56
    • 66

    Mostly Sunny

    • 57
    • 65

    Partly Sunny

    • 63
    • 68

    Partly Sunny

    • 65
    • 73

    Partly Sunny

Today 18 Sep Newport

Partly sunny with patchy drizzle. Patchy fog. Highs in the mid 70s. North Winds 5 to 10 Mph, becoming northwest.

Tonight 18 Sep Newport

Clear. Lows in the lower 60s. Southwest Winds 5 to 10 Mph, becoming west after midnight.

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Coasters Harbor Island Temperature Statistics

September Temperature

Newport, Newport State Airport (2.5 miles)

  • Lowest 13 September, 2025

    50 °F

  • Average September

    64.1 °F

  • Highest 6 September, 2025

    77 °F

Climate (2020–Present)

Newport, Newport State Airport (2.5 miles)

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  • Average Low 2020–2025

    45.4 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    59.8 °F
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