Old Lyme Weather Forecast

    • 37
    • 52

    Rain

    • 29
    • 45

    Rain Showers

    • 32
    • 45

    Partly Sunny

    • 36
    • 49

    Chance Rain

    • 39
    • 52

    Rain Likely

    • 25
    • 50

    Partly Sunny

Today 22 Mar Southern New London

Mostly cloudy. A slight chance of rain this Morning, then rain likely this afternoon. Highs around 50. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 60 percent.

Tonight 22 Mar Southern New London

Rain in the Evening, then Showers after midnight. Lows in the mid 30s. Southwest Winds around 5 Mph, becoming north after midnight. Chance of rain 90 percent.

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Old Lyme Temperature Statistics

March Temperature

Chester, Chester Airport (11.2 miles)

  • Lowest 2 March, 2026

    15.8 °F

  • Average March

    41.2 °F

  • Highest 10 March, 2026

    73.4 °F

Climate (2021–Present)

Chester, Chester Airport (11.2 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    62.6 °F
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