Stonington Harbor Weather Forecast

    • 37
    • 45

    Increasing Clouds

    • 44
    • 54

    Mostly Cloudy

    • 48
    • 59

    Slight Chance Rain

    • 37
    • 61

    Rain Likely

    • 34
    • 44

    Rain/Snow Likely

    • 35
    • 43

    Rain Likely

Today 29 Mar Southern New London

Sunny. Highs in the mid 40s. Southwest Winds 10 to 15 Mph. Gusts up to 25 Mph in the afternoon.

Tonight 29 Mar Southern New London

Mostly cloudy. Lows in the upper 30s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Stonington Harbor Temperature Statistics

March Temperature

Westerly, Westerly State Airport (5.6 miles)

  • Lowest 3 March, 2026

    8.1 °F

  • Average March

    36.9 °F

  • Highest 21 March, 2026

    55.9 °F

Climate (2021–Present)

Westerly, Westerly State Airport (5.6 miles)

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  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    60.3 °F
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