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

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

57°F

14°C

Humidity 100%
Wind Speed Calm
Barometer 30.01 in (1016.2 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 25 Jun 3:56 am EDT
Extended Forecast for

2 Miles NW Old Saybrook Center CT

  • Today

    Today: Mostly sunny, with a high near 81. Calm wind becoming south around 6 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms between 2am and 5am, then showers likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 63. Light south wind. Chance of precipitation is 60%.

    Low: 63 °F

    Partly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 11am, then a slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 78. Southwest wind 5 to 7 mph. Chance of precipitation is 60%.

    High: 78 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 40%.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers. Mostly cloudy, with a high near 79. Light and variable wind.

    High: 79 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 81. Calm wind becoming south around 6 mph in the afternoon.
Tonight
A chance of showers and thunderstorms between 2am and 5am, then showers likely and possibly a thunderstorm after 5am. Increasing clouds, with a low around 63. Light south wind. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm before 11am, then a slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 78. Southwest wind 5 to 7 mph. Chance of precipitation is 60%.
Friday Night
A slight chance of thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 40%.
Saturday
A 50 percent chance of showers. Mostly cloudy, with a high near 79. Light and variable wind.
Saturday Night
Mostly cloudy, with a low around 62.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 63.
Monday
Sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Old Saybrook Center CT
 41.31°N 72.38°W (Elev. 82 ft)
Last Update:
2:24 am EDT Jun 25, 2026
Forecast Valid:
4am EDT Jun 25, 2026-6pm EDT Jul 1, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation