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.

Overcast

52°F

11°C

Humidity 69%
Wind Speed NW 15 G 37 mph
Barometer 29.76 in (1007.7 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 19 Apr 12:56 pm EDT
Extended Forecast for

Old Saybrook Center CT

Freeze Watch April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Freeze Watch

  • This Afternoon

    This Afternoon: Showers, mainly after 4pm. High near 53. Breezy, with a northwest wind 17 to 20 mph. Chance of precipitation is 80%.

    High: 53 °F

    Showers and
    Breezy

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 38. West wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 38 °F

    Gradual
    Clearing

  • Monday

    Monday: A 30 percent chance of showers. Increasing clouds, with a high near 46. West wind 5 to 8 mph.

    High: 46 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33. North wind around 9 mph.

    Low: 33 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 45. North wind 5 to 7 mph becoming southwest in the afternoon.

    High: 45 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 40.

    Low: 40 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers, mainly after 4pm. High near 53. Breezy, with a northwest wind 17 to 20 mph. Chance of precipitation is 80%.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 38. West wind 5 to 10 mph, with gusts as high as 25 mph.
Monday
A 30 percent chance of showers. Increasing clouds, with a high near 46. West wind 5 to 8 mph.
Monday Night
Partly cloudy, with a low around 33. North wind around 9 mph.
Tuesday
Sunny, with a high near 45. North wind 5 to 7 mph becoming southwest in the afternoon.
Tuesday Night
Increasing clouds, with a low around 40.
Wednesday
Mostly cloudy, with a high near 51.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Mostly sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 56.
Friday Night
Partly cloudy, with a low around 44.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 54.
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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:
10:15 am EDT Apr 19, 2026
Forecast Valid:
1pm EDT Apr 19, 2026-6pm EDT Apr 25, 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