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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Groton / New London Airport CT

  • Overnight

    Overnight: Mostly cloudy, with a low around 54. Light east wind.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers, mainly between 2pm and 5pm, then rain after 5pm. High near 68. Southeast wind 6 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 68 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Rain before 8pm, then showers, mainly between 8pm and 2am. Low around 56. Southeast wind around 7 mph becoming north after midnight. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 56 °F

    Rain

  • Monday

    Monday: A 30 percent chance of showers before 8am. Partly sunny, with a high near 67. Northeast wind 10 to 14 mph.

    High: 67 °F

    Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 52. Northeast wind 6 to 9 mph.

    Low: 52 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 64.

    High: 64 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 64. Breezy.

    High: 64 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 52. Breezy.

    Low: 52 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 54. Light east wind.
Sunday
Showers, mainly between 2pm and 5pm, then rain after 5pm. High near 68. Southeast wind 6 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain before 8pm, then showers, mainly between 8pm and 2am. Low around 56. Southeast wind around 7 mph becoming north after midnight. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
A 30 percent chance of showers before 8am. Partly sunny, with a high near 67. Northeast wind 10 to 14 mph.
Monday Night
Mostly cloudy, with a low around 52. Northeast wind 6 to 9 mph.
Tuesday
Mostly cloudy, with a high near 64.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
Partly sunny, with a high near 64. Breezy.
Wednesday Night
Mostly cloudy, with a low around 52. Breezy.
Thursday
A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 64. Breezy.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 52. Breezy.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 64. Breezy.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 54. Breezy.
Saturday
A 30 percent chance of showers. Mostly cloudy, with a high near 66. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Groton / New London Airport CT
 41.31°N 72.03°W (Elev. 0 ft)
Last Update:
2:28 pm EDT Sep 19, 2026
Forecast Valid:
3am EDT Sep 20, 2026-6pm EDT Sep 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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