Old Lyme Weather Forecast

    • 67
    • 79

    Rain Showers

    • 66
    • 77

    Rain Showers

    • 65
    • 83

    Partly Sunny

    • 66
    • 85

    Chance Rain Showers

    • 60
    • 80

    Chance Rain Showers

    • 60
    • 81

    Chance Rain Showers

    • 61
    • 79

    Chance Rain Showers

Today 16 Aug Southern New London

Mostly sunny. Near steady temperature in the mid 70s. South Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 16 Aug Southern New London

Mostly cloudy. A slight chance of Showers in the Evening, then Showers after midnight. Lows in the upper 60s. South Winds 10 to 15 Mph. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Old Lyme Temperature Statistics

August Temperature

Chester, Chester Airport (11.2 miles)

  • Lowest 4 August, 2026

    60.8 °F

  • Average August

    76.7 °F

  • Highest 7 August, 2026

    93.2 °F

Climate (2021–2026)

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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