Mystic Weather Forecast

    • 26
    • 37

    Increasing Clouds

    • 31
    • 41

    Partly Sunny

    • 38
    • 48

    Partly Sunny

    • 38
    • 51

    Chance Rain

    • 36
    • 52

    Chance Rain

    • 27
    • 47

    Mostly Sunny

Today 18 Mar Southern New London

Mostly sunny. Highs in the upper 30s. Northwest Winds around 5 Mph, becoming southwest this afternoon.

Tonight 18 Mar Southern New London

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 20s. South Winds around 5 Mph in the Evening, becoming light and variable.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mystic Temperature Statistics

March Temperature

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

  • Lowest 3 March, 2026

    12 °F

  • Average March

    38.1 °F

  • Highest 9 March, 2026

    63 °F

Climate (2021–Present)

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