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

58°F

14°C

Humidity 90%
Wind Speed N 8 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 26 Jul 2:56 am EDT
Extended Forecast for

5 Miles ESE Moodus CT

  • Overnight

    Overnight: Mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 81. Calm wind.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. Light and variable wind.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 81. Calm wind becoming south around 6 mph in the afternoon.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers after 2am. Partly cloudy, with a low around 63. South wind 3 to 5 mph.

    Low: 63 °F

    Mostly Clear
    then Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, mainly after 8am. Mostly cloudy, with a high near 77. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 77 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers, with thunderstorms also possible after 8pm. Low around 63. Chance of precipitation is 90%.

    Low: 63 °F

    Showers

  • Wednesday

    Wednesday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 75. Chance of precipitation is 80%.

    High: 75 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 61. Chance of precipitation is 80%.

    Low: 61 °F

    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 57. Calm wind.
Sunday
Sunny, with a high near 81. Calm wind.
Sunday Night
Mostly clear, with a low around 58. Light and variable wind.
Monday
Sunny, with a high near 81. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 63. South wind 3 to 5 mph.
Tuesday
Showers likely, mainly after 8am. Mostly cloudy, with a high near 77. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Showers, with thunderstorms also possible after 8pm. Low around 63. Chance of precipitation is 90%.
Wednesday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 75. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 61. Chance of precipitation is 80%.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 50%.
Thursday Night
A chance of thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Friday
A 30 percent chance of showers. Mostly sunny, with a high near 79.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 64.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Moodus CT
 41.49°N 72.37°W (Elev. 522 ft)
Last Update:
2:49 am EDT Jul 26, 2026
Forecast Valid:
3am EDT Jul 26, 2026-6pm EDT Aug 1, 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