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.

Fair

35°F

2°C

Humidity 38%
Wind Speed W 14 G 28 mph
Barometer 30.06 in (1017.9 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 23 Jan 5:56 pm EST
Extended Forecast for

Groton / New London Airport CT

Cold Weather Advisory January 23, 10:00pm until January 24, 12:00pm
Winter Storm Warning January 25, 03:00am until January 26, 06:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 6. Wind chill values between -10 and zero. Blustery, with a northwest wind 20 to 24 mph, with gusts as high as 36 mph.

    Low: 6 °F

    Decreasing
    Clouds and
    Blustery

  • Saturday

    Saturday: Sunny and cold, with a high near 18. Wind chill values between -5 and -15. Northwest wind 11 to 18 mph.

    High: 18 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 7. Wind chill values between zero and 5. North wind 6 to 9 mph.

    Low: 7 °F

    Mostly Cloudy

  • Sunday

    Sunday: Snow. The snow could be heavy at times. High near 28. Wind chill values between zero and 10. Northeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.

    High: 28 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: Snow before 1am, then snow and sleet. The snow could be heavy at times. Temperature rising to around 29 by 2am. Blustery, with a northeast wind 18 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 4 to 8 inches possible.

    Low: 25 °F⇑

    Blustery.
    Heavy Snow
    then
    Snow/Sleet

  • Monday

    Monday: Snow likely. Cloudy, with a high near 30. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 30 °F

    Snow Likely

  • Monday Night

    Monday Night: A 30 percent chance of snow before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 10.

    Low: 10 °F

    Chance Snow

  • Tuesday

    Tuesday: Mostly sunny, with a high near 22.

    High: 22 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 8.

    Low: 8 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 6. Wind chill values between -10 and zero. Blustery, with a northwest wind 20 to 24 mph, with gusts as high as 36 mph.
Saturday
Sunny and cold, with a high near 18. Wind chill values between -5 and -15. Northwest wind 11 to 18 mph.
Saturday Night
Mostly cloudy, with a low around 7. Wind chill values between zero and 5. North wind 6 to 9 mph.
Sunday
Snow. The snow could be heavy at times. High near 28. Wind chill values between zero and 10. Northeast wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 6 to 10 inches possible.
Sunday Night
Snow before 1am, then snow and sleet. The snow could be heavy at times. Temperature rising to around 29 by 2am. Blustery, with a northeast wind 18 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 4 to 8 inches possible.
Monday
Snow likely. Cloudy, with a high near 30. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Monday Night
A 30 percent chance of snow before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 10.
Tuesday
Mostly sunny, with a high near 22.
Tuesday Night
Partly cloudy, with a low around 8.
Wednesday
Sunny, with a high near 22.
Wednesday Night
Mostly cloudy, with a low around 8.
Thursday
Partly sunny, with a high near 21.
Thursday Night
Partly cloudy, with a low around 7.
Friday
Mostly sunny, with a high near 22.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Groton / New London Airport CT
 41.34°N 72.05°W (Elev. 49 ft)
Last Update:
12:58 pm EST Jan 23, 2026
Forecast Valid:
6pm EST Jan 23, 2026-6pm EST Jan 30, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation