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

30°F

-1°C

Humidity 66%
Wind Speed SW 3 mph
Barometer 30.11 in (1019.5 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 28 Dec 11:56 am EST
Extended Forecast for

Old Saybrook Center CT

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 39. Southwest wind around 8 mph.

    High: 39 °F

    Mostly Cloudy

  • Tonight

    Tonight: Rain, mainly before 4am. Temperature rising to around 46 by 5am. South wind 7 to 14 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 35 °F⇑

    Rain

  • Monday

    Monday: Rain, mainly after 7am. High near 50. Southwest wind 13 to 17 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Rain

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 28. Wind chill values between 15 and 25. Windy, with a west wind around 26 mph.

    Low: 28 °F

    Decreasing
    Clouds and
    Windy

  • Tuesday

    Tuesday: Partly sunny, with a high near 32. Windy, with a west wind 24 to 26 mph.

    High: 32 °F

    Partly Sunny
    and Windy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a steady temperature around 30. Breezy.

    Low: 30 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A 30 percent chance of snow after 1pm. Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny
    then Chance
    Snow

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 39. Southwest wind around 8 mph.
Tonight
Rain, mainly before 4am. Temperature rising to around 46 by 5am. South wind 7 to 14 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Rain, mainly after 7am. High near 50. Southwest wind 13 to 17 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 28. Wind chill values between 15 and 25. Windy, with a west wind around 26 mph.
Tuesday
Partly sunny, with a high near 32. Windy, with a west wind 24 to 26 mph.
Tuesday Night
Mostly cloudy, with a steady temperature around 30. Breezy.
Wednesday
Partly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 26.
New Year's Day
A 30 percent chance of snow after 1pm. Partly sunny, with a high near 33.
Thursday Night
Mostly cloudy, with a low around 22.
Friday
Mostly sunny, with a high near 31.
Friday Night
Mostly clear, with a low around 22.
Saturday
Mostly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Old Saybrook Center CT
 41.29°N 72.39°W (Elev. 89 ft)
Last Update:
9:53 am EST Dec 28, 2025
Forecast Valid:
12pm EST Dec 28, 2025-6pm EST Jan 3, 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