Old Lyme Weather Forecast

    • 50
    • 64

    Rain Showers

    • 45
    • 66

    Chance Rain Showers

    • 49
    • 64

    Partly Sunny

    • 50
    • 63

    Chance Rain Showers

    • 52
    • 71

    Rain Showers Likely

    • 48
    • 69

    Rain Showers Likely

    • 48
    • 66

    Partly Sunny

Today 6 May Southern New London

Showers. Near steady temperature in the upper 50s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 90 percent.

Tonight 6 May Southern New London

Showers likely with isolated Thunderstorms. Lows around 50. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming northwest 5 to 10 Mph after midnight. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Old Lyme Temperature Statistics

May Temperature

Chester, Chester Airport (11.2 miles)

  • Lowest 1 May, 2026

    41 °F

  • Average May

    52.1 °F

  • Highest 4 May, 2026

    68 °F

Climate (2021–Present)

Chester, Chester Airport (11.2 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    62.5 °F
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