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

70°F

21°C

Humidity 66%
Wind Speed S 6 mph
Barometer 29.84 in (1010.6 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 16 Apr 1:56 pm EDT
Extended Forecast for

3 Miles ENE East Haddam CT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 81. Southwest wind around 9 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers, mainly between 11pm and 2am. Mostly cloudy, with a low around 59. South wind 5 to 8 mph becoming calm after midnight.

    Low: 59 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 76. Northwest wind 3 to 6 mph. Chance of precipitation is 60%.

    High: 76 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 52. Northeast wind around 6 mph. Chance of precipitation is 60%.

    Low: 52 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Saturday

    Saturday: Partly sunny, with a high near 65. Northeast wind around 7 mph becoming southeast in the afternoon.

    High: 65 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 57. Chance of precipitation is 80%.

    High: 57 °F

    Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 8pm. Low around 35. Chance of precipitation is 80%.

    Low: 35 °F

    Showers then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 81. Southwest wind around 9 mph.
Tonight
A 30 percent chance of showers, mainly between 11pm and 2am. Mostly cloudy, with a low around 59. South wind 5 to 8 mph becoming calm after midnight.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 76. Northwest wind 3 to 6 mph. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 52. Northeast wind around 6 mph. Chance of precipitation is 60%.
Saturday
Partly sunny, with a high near 65. Northeast wind around 7 mph becoming southeast in the afternoon.
Saturday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 47.
Sunday
Showers, mainly after 8am. High near 57. Chance of precipitation is 80%.
Sunday Night
Showers, mainly before 8pm. Low around 35. Chance of precipitation is 80%.
Monday
Mostly sunny, with a high near 47.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE East Haddam CT
 41.47°N 72.41°W (Elev. 554 ft)
Last Update:
1:15 pm EDT Apr 16, 2026
Forecast Valid:
2pm EDT Apr 16, 2026-6pm EDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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