Castle Island Weather Forecast

    • 38
    • 58

    Mostly Sunny

    • 34
    • 47

    Slight Chance Rain Showers

    • 37
    • 44

    Slight Chance Rain Showers

    • 40
    • 51

    Mostly Cloudy

    • 48
    • 55

    Chance Rain Showers

    • 48
    • 59

    Rain Showers Likely

Today 11 Mar Newport

Sunny. Highs in the mid 50s. South Winds 10 to 15 Mph.

Tonight 11 Mar Newport

Partly cloudy. Lows in the upper 30s. Southwest Winds 5 to 10 Mph, becoming northwest after midnight. Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castle Island Temperature Statistics

March Temperature

N. Kingston / Quonset (7.5 miles)

  • Lowest 3 March, 2025

    14 °F

  • Average March

    35.6 °F

  • Highest 5 March, 2025

    51.8 °F

Climate (2020–Present)

N. Kingston / Quonset (7.5 miles)

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  • Average Low 2020–2025

    51 °F

  • Average 2020–2025

    56.5 °F

  • Average High 2020–2025

    61 °F
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