Haley Farm State Park Weather Forecast

    • 62
    • 77

    Mostly Cloudy

    • 62
    • 75

    Mostly Cloudy

    • 63
    • 77

    Mostly Sunny

    • 67
    • 79

    Chance Rain Showers

    • 70
    • 82

    Slight Chance Thunderstorms

    • 71
    • 86

    Mostly Sunny

Today 27 Jun Southern New London

Partly sunny. Highs in the upper 70s. Light and variable Winds, becoming south around 5 Mph this afternoon.

Tonight 27 Jun Southern New London

Mostly cloudy with a 20 percent chance of Showers. Lows in the lower 60s. South Winds around 5 Mph in the Evening, becoming light and variable.

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Haley Farm State Park Temperature Statistics

June Temperature

Groton / New London, Groton / New London Airport (1.9 miles)

  • Lowest 2 June, 2026

    42.1 °F

  • Average June

    66.4 °F

  • Highest 11 June, 2026

    87.1 °F

Climate (2021–2026)

Groton / New London, Groton / New London Airport (1.9 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    60.7 °F
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