National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Groton / New London, Groton / New London Airport (KGON)

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

85°F

29°C

Humidity 45%
Wind Speed W 8 mph
Barometer 30.12 in (1019.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 11 Aug 5:56 pm EDT
Extended Forecast for

Old Saybrook Center CT

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 66. Southwest wind 5 to 7 mph.

    Low: 66 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, sunny, with a high near 81. Southwest wind 5 to 7 mph.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 69. Southwest wind 5 to 8 mph.

    Low: 69 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 80. South wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 80 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Southwest wind 5 to 8 mph. Chance of precipitation is 40%.

    Low: 71 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 66. Southwest wind 5 to 7 mph.
Tuesday
Patchy fog before 8am. Otherwise, sunny, with a high near 81. Southwest wind 5 to 7 mph.
Tuesday Night
Patchy fog after 2am. Otherwise, mostly clear, with a low around 69. Southwest wind 5 to 8 mph.
Wednesday
A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 80. South wind 5 to 10 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Southwest wind 5 to 8 mph. Chance of precipitation is 40%.
Thursday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 68.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 69.
Monday
Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Old Saybrook Center CT
 41.29°N 72.39°W (Elev. 89 ft)
Last Update:
3:49 pm EDT Aug 11, 2025
Forecast Valid:
6pm EDT Aug 11, 2025-6pm EDT Aug 18, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation