Niantic Weather Forecast

    • 60
    • 77

    Becoming Sunny

    • 60
    • 77

    Mostly Sunny

    • 63
    • 74

    Rain Showers

    • 62
    • 84

    Mostly Sunny

    • 63
    • 84

    Mostly Sunny

    • 63
    • 82

    Partly Sunny

Today 20 Jun Southern New London

Sunny. Highs in the upper 70s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 20 Jun Southern New London

Mostly clear. Lows around 60. Northwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening.

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Niantic Temperature Statistics

June Temperature

Groton / New London, Groton / New London Airport (6.8 miles)

  • Lowest 2 June, 2026

    42.1 °F

  • Average June

    65.7 °F

  • Highest 11 June, 2026

    87.1 °F

Climate (2021–2026)

Groton / New London, Groton / New London Airport (6.8 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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