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.

Mostly Cloudy

39°F

4°C

Humidity 67%
Wind Speed W 5 mph
Barometer 29.78 in (1008.3 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 14 Mar 6:56 am EDT
Extended Forecast for

3 Miles ENE East Haddam CT

  • Today

    Today: Mostly sunny, with a high near 45. Breezy, with a west wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 37 mph.

    High: 45 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 28. Northwest wind 6 to 13 mph.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy, with a high near 45. Wind chill values between 25 and 35 early. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 45 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain likely after 2am. Mostly cloudy, with a temperature falling to near 38 by 8pm, then rising to around 46 during the remainder of the night. Southeast wind 8 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F⇑

    Mostly Cloudy
    then Rain
    Likely

  • Monday

    Monday: Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 59. Breezy, with a south wind 18 to 22 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 59 °F

    Heavy Rain
    and Breezy

  • Monday Night

    Monday Night: Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 37. Windy. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 37 °F

    Heavy Rain
    and Windy

  • Tuesday

    Tuesday: Rain likely before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 45. Chance of precipitation is 60%.

    High: 45 °F

    Rain Likely
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 45. Breezy, with a west wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 37 mph.
Tonight
Mostly clear, with a low around 28. Northwest wind 6 to 13 mph.
Sunday
Mostly cloudy, with a high near 45. Wind chill values between 25 and 35 early. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Sunday Night
Rain likely after 2am. Mostly cloudy, with a temperature falling to near 38 by 8pm, then rising to around 46 during the remainder of the night. Southeast wind 8 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 59. Breezy, with a south wind 18 to 22 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday Night
Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 37. Windy. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Tuesday
Rain likely before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 45. Chance of precipitation is 60%.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
Mostly sunny, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
Mostly sunny, with a high near 43.
Thursday Night
Partly cloudy, with a low around 30.
Friday
Mostly sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE East Haddam CT
 41.47°N 72.41°W (Elev. 554 ft)
Last Update:
3:09 am EDT Mar 14, 2026
Forecast Valid:
7am EDT Mar 14, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation