Niantic Weather Forecast

    • 71
    • 79

    Mostly Cloudy

    • 73
    • 87

    Partly Sunny

    • 71
    • 88

    Chance Rain Showers

    • 71
    • 87

    Slight Chance Thunderstorms

    • 69
    • 83

    Mostly Sunny

    • 69
    • 83

    Slight Chance Rain Showers

Today 5 Aug Southern New London

Mostly sunny. Near steady temperature in the upper 70s. South Winds around 5 Mph.

Tonight 5 Aug Southern New London

Mostly cloudy. A slight chance of Showers after midnight. Humid with Lows in the lower 70s. South Winds around 5 Mph. Chance of rain 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Niantic Temperature Statistics

August Temperature

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

  • Lowest 1 August, 2026

    64.9 °F

  • Average August

    73.3 °F

  • Highest 1 August, 2026

    79 °F

Climate (2021–2026)

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

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    53.2 °F

  • Average High 2021–2026

    60.8 °F
Get WillyWeather+ to remove ads