Thimble Islands Weather Forecast

    • 55
    • 71

    Decreasing Clouds

    • 60
    • 72

    Partly Sunny

    • 64
    • 76

    Partly Sunny

    • 62
    • 78

    Partly Sunny

    • 56
    • 70

    Rain Showers Likely

    • 56
    • 66

    Rain Showers Likely

Today 29 Sep Southern New Haven

Patchy fog this morning. Mostly sunny. Highs in the lower 70s. Northwest Winds 5 to 10 Mph.

Tonight 29 Sep Southern New Haven

Partly cloudy in the Evening, then clearing. Lows in the mid 50s. Northwest Winds around 5 Mph.

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Thimble Islands Temperature Statistics

September Temperature

New Haven, Tweed-New Haven Airport (6.8 miles)

  • Lowest 24 September, 2026

    46.9 °F

  • Average September

    66.7 °F

  • Highest 10 September, 2026

    84 °F

Climate (2021–2026)

New Haven, Tweed-New Haven Airport (6.8 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    55.4 °F

  • Average High 2021–2026

    63.3 °F
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