Clam Island Weather Forecast

    • 49
    • 63

    Increasing Clouds

    • 51
    • 63

    Rain Showers

    • 50
    • 62

    Rain Showers

    • 50
    • 65

    Slight Chance Rain Showers

    • 54
    • 71

    Mostly Sunny

    • 54
    • 76

    Mostly Sunny

Today 12 May Southern New Haven

Sunny. Highs in the mid 60s. North Winds 5 to 10 Mph, becoming west this afternoon. Gusts up to 20 Mph.

Tonight 12 May Southern New Haven

Mostly clear in the Evening, then becoming mostly cloudy. Lows in the upper 40s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clam Island Temperature Statistics

May Temperature

New Haven, Tweed-New Haven Airport (3.7 miles)

  • Lowest 4 May, 2026

    39 °F

  • Average May

    54.2 °F

  • Highest 5 May, 2026

    68 °F

Climate (2021–Present)

New Haven, Tweed-New Haven Airport (3.7 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    55.6 °F

  • Average High 2021–2026

    63.5 °F
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