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Hazardous Weather Conditions

Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Overcast and Breezy

50°F

10°C

Humidity 66%
Wind Speed NW 22 G 33 mph
Barometer 29.75 in (1007.4 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 19 Apr 1:56 pm EDT
Extended Forecast for

Old Saybrook Center CT

Frost Advisory April 20, 12:00am until April 20, 08:00am
Freeze Warning April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Frost Advisory
Freeze Warning

  • This Afternoon

    This Afternoon: Showers, mainly after 3pm. High near 50. Breezy, with a northwest wind 15 to 20 mph. Chance of precipitation is 80%.

    High: 50 °F

    Showers and
    Breezy

  • Tonight

    Tonight: Areas of frost after 3am. Otherwise, mostly cloudy during the early evening, then gradual clearing, with a low around 35. West wind 5 to 13 mph, with gusts as high as 26 mph.

    Low: 35 °F

    Decreasing
    Clouds then
    Areas Frost

  • Monday

    Monday: A 40 percent chance of showers after 10am. Areas of frost before 8am. Otherwise, increasing clouds, with a high near 50. West wind 3 to 7 mph.

    High: 50 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28. Wind chill values between 20 and 25. Northwest wind 8 to 10 mph.

    Low: 28 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Widespread frost before 8am. Otherwise, sunny, with a high near 50. North wind 5 to 7 mph becoming light and variable.

    High: 50 °F

    Frost then
    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 41.

    Low: 41 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 52.

    High: 52 °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 58.

    High: 58 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers, mainly after 3pm. High near 50. Breezy, with a northwest wind 15 to 20 mph. Chance of precipitation is 80%.
Tonight
Areas of frost after 3am. Otherwise, mostly cloudy during the early evening, then gradual clearing, with a low around 35. West wind 5 to 13 mph, with gusts as high as 26 mph.
Monday
A 40 percent chance of showers after 10am. Areas of frost before 8am. Otherwise, increasing clouds, with a high near 50. West wind 3 to 7 mph.
Monday Night
Partly cloudy, with a low around 28. Wind chill values between 20 and 25. Northwest wind 8 to 10 mph.
Tuesday
Widespread frost before 8am. Otherwise, sunny, with a high near 50. North wind 5 to 7 mph becoming light and variable.
Tuesday Night
Increasing clouds, with a low around 41.
Wednesday
Mostly cloudy, with a high near 52.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Mostly sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 56.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 43.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 53.
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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:
2:18 pm EDT Apr 19, 2026
Forecast Valid:
2pm EDT Apr 19, 2026-6pm EDT Apr 25, 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