7-Day Forecast 41.31°N 72.33°W (Text-Only)
NWS Forecast for: Old Lyme CT
Issued by: National Weather Service New York, NY
Last Update: 6:03 am EDT Jul 15, 2025
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  • Today

    Today: A 30 percent chance of showers and thunderstorms before 11am.  Patchy fog before 11am.  Otherwise, cloudy through mid morning, then gradual clearing, with a high near 83. South wind 3 to 7 mph.

    High: 83 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 70. Light southwest wind.

    Low: 70 °F

    Patchy Fog




  • Wednesday

    Wednesday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 86. Heat index values as high as 97. Calm wind becoming south 5 to 7 mph in the morning.

    High: 86 °F

    Patchy Fog
    then Mostly
    Sunny


  • Wednesday
    Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms.  Increasing clouds, with a low around 72. South wind around 6 mph becoming calm  in the evening.

    Low: 72 °F

    Chance
    T-storms



  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms.  Partly sunny, with a high near 87. Southwest wind 5 to 10 mph.

    High: 87 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday
    Night

    Thursday Night: A chance of thunderstorms before 8pm.  Partly cloudy, with a low around 74. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    T-storms then
    Partly Cloudy


  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms


  • Friday
    Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms then
    Partly Cloudy


  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny






  • Today: A 30 percent chance of showers and thunderstorms before 11am. Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 83. South wind 3 to 7 mph.

    Tonight: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 70. Light southwest wind.

    Wednesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 86. Heat index values as high as 97. Calm wind becoming south 5 to 7 mph in the morning.

    Wednesday Night: A 40 percent chance of showers and thunderstorms. Increasing clouds, with a low around 72. South wind around 6 mph becoming calm in the evening.

    Thursday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Southwest wind 5 to 10 mph.

    Thursday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 74. Chance of precipitation is 30%.

    Friday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88.

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 67.

    Saturday: Sunny, with a high near 82.

    Saturday Night: Mostly cloudy, with a low around 66.

    Sunday: A 40 percent chance of showers. Partly sunny, with a high near 82.

    Sunday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 68.

    Monday: Mostly sunny, with a high near 82.



    Old Lyme CT
     41.31°N 72.33°W (Elev. 43 ft)

    Visit your local NWS office at: https://www.weather.gov/okx/