Poquonock Bridge Weather Forecast

    • 58
    • 75

    Chance Rain Showers

    • 56
    • 75

    Mostly Sunny

    • 56
    • 72

    Partly Sunny

    • 57
    • 75

    Mostly Cloudy

    • 59
    • 74

    Slight Chance Rain Showers

    • 56
    • 78

    Partly Sunny

Today 14 Sep Southern New London

Partly sunny. A chance of Showers this afternoon. Highs in the mid 70s. Southwest Winds 5 to 10 Mph. Chance of rain 30 percent.

Tonight 14 Sep Southern New London

Partly cloudy with a slight chance of Showers in the Evening, then partly cloudy after midnight. Patchy fog. Lows in the upper 50s. Southwest Winds around 5 Mph, becoming north after midnight. Chance of rain 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Poquonock Bridge Temperature Statistics

September Temperature

Groton / New London, Groton / New London Airport (1.2 miles)

  • Lowest 9 September, 2025

    48 °F

  • Average September

    61.8 °F

  • Highest 6 September, 2025

    75.9 °F

Climate (2020–Present)

Groton / New London, Groton / New London Airport (1.2 miles)

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

  • Average Low 2020–2025

    45.7 °F

  • Average 2020–2025

    53.6 °F

  • Average High 2020–2025

    61.1 °F
Get WillyWeather+ to remove ads