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.

Overcast

33°F

1°C

Humidity 52%
Wind Speed Calm
Barometer 30.47 in (1031.8 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 15 Mar 6:56 am EDT
Extended Forecast for

Saybrook Manor CT

  • Today

    Today: Partly sunny, with a high near 42. Light and variable wind becoming southeast 8 to 13 mph in the morning.

    High: 42 °F

    Partly Sunny

  • Tonight

    Tonight: Showers and possibly a thunderstorm, mainly after 5am. Patchy fog after 2am. Temperature falling to near 38 by 8pm, then rising to around 43 during the remainder of the night. Breezy, with an east wind 10 to 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 38 °F⇑

    Partly Cloudy
    then Showers
    and Patchy
    Fog

  • Monday

    Monday: Intermittent showers and thunderstorms. Patchy fog before noon. Otherwise, cloudy, with a high near 54. Breezy, with a south wind around 25 mph, with gusts as high as 37 mph. Chance of precipitation is 50%.

    High: 54 °F

    Intermittent
    T-storms and
    Patchy Fog

  • Monday Night

    Monday Night: Periods of showers and possibly a thunderstorm before 2am, then showers likely. Some of the storms could produce heavy rainfall. Low around 38. Windy, with a south wind 28 to 33 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 38 °F

    Heavy Rain
    and Windy

  • Tuesday

    Tuesday: Showers likely before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 41. Breezy, with a west wind around 21 mph. Chance of precipitation is 60%.

    High: 41 °F

    Breezy.
    Showers
    Likely then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 36.

    High: 36 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 42. Light and variable wind becoming southeast 8 to 13 mph in the morning.
Tonight
Showers and possibly a thunderstorm, mainly after 5am. Patchy fog after 2am. Temperature falling to near 38 by 8pm, then rising to around 43 during the remainder of the night. Breezy, with an east wind 10 to 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Intermittent showers and thunderstorms. Patchy fog before noon. Otherwise, cloudy, with a high near 54. Breezy, with a south wind around 25 mph, with gusts as high as 37 mph. Chance of precipitation is 50%.
Monday Night
Periods of showers and possibly a thunderstorm before 2am, then showers likely. Some of the storms could produce heavy rainfall. Low around 38. Windy, with a south wind 28 to 33 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
Showers likely before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 41. Breezy, with a west wind around 21 mph. Chance of precipitation is 60%.
Tuesday Night
Mostly clear, with a low around 26.
Wednesday
Increasing clouds, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
Partly sunny, with a high near 42.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
Partly sunny, with a high near 46.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 35.
Saturday
A 50 percent chance of rain. Partly sunny, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
Saybrook Manor CT
 41.27°N 72.42°W (Elev. 0 ft)
Last Update:
6:56 am EDT Mar 15, 2026
Forecast Valid:
7am EDT Mar 15, 2026-6pm EDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation