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

Hazardous Weather Conditions

Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Light Rain

70°F

21°C

Humidity 87%
Wind Speed E 16 mph
Barometer 29.59 in (1001.9 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 29 Jul 6:56 am EDT
Extended Forecast for

Centerbrook CT

Flood Watch July 29, 07:18am until July 29, 02:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch July 29, 07:18am until July 29, 02:00pm

    NOW until 2:00pm Wed

    Flood Watch

  • Today

    High: 74 °F

    Showers then
    Showers
    Likely

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 63. Light northeast wind. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 76. North wind 5 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 61. North wind around 5 mph becoming calm in the evening.

    Low: 61 °F

    Slight Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 81. Light north wind.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

Detailed Forecast

Today
Showers and possibly a thunderstorm. High near 74. Southeast wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Tonight
Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 63. Light northeast wind. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 76. North wind 5 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 61. North wind around 5 mph becoming calm in the evening.
Friday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 81. Light north wind.
Friday Night
Mostly clear, with a low around 64.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Mostly cloudy, with a low around 66.
Sunday
Partly sunny, with a high near 81.
Sunday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 67.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 82.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Centerbrook CT
 41.34°N 72.41°W (Elev. 98 ft)
Last Update:
2:23 am EDT Jul 29, 2026
Forecast Valid:
7am EDT Jul 29, 2026-6pm EDT Aug 4, 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