Hay Harbor Weather Forecast

    • 69
    • 78

    Mostly Sunny

    • 73
    • 83

    Mostly Sunny

    • 67
    • 81

    Chance Rain Showers

    • 64
    • 72

    Chance Rain Showers

    • 65
    • 68

    Chance Rain Showers

    • 65
    • 70

    Chance Rain Showers

Today 23 Jun Northeast Suffolk

Sunny with Highs in the lower 80s. Northeast Winds around 5 Mph, becoming south in the afternoon.

Tonight 23 Jun Northeast Suffolk

Partly cloudy. Near steady temperature in the lower 70s. Northwest Winds around 5 Mph.

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Hay Harbor Temperature Statistics

June Temperature

Groton / New London, Groton / New London Airport (4.3 miles)

  • Lowest 3 June, 2025

    47.6 °F

  • Average June

    65.6 °F

  • Highest 5 June, 2025

    83.6 °F

Climate (2020–Present)

Groton / New London, Groton / New London Airport (4.3 miles)

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  • Average Low 2020–2025

    45.7 °F

  • Average 2020–2025

    53.6 °F

  • Average High 2020–2025

    61.1 °F
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