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

73°F

23°C

Humidity 79%
Wind Speed Calm
Barometer 30.17 in (1021.6 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 5 Aug 8:56 am EDT
Extended Forecast for

4 Miles W Salem CT

  • Today

    Today: Mostly sunny, with a high near 83. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 68. Calm wind.

    Low: 68 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 87. Heat index values as high as 99. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 87 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms between 8pm and midnight. Partly cloudy, with a low around 71. Light southwest wind. Chance of precipitation is 20%.

    Low: 71 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 88 °F

    Sunny then
    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers before midnight. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 83. Calm wind becoming southwest around 6 mph in the afternoon.
Tonight
Increasing clouds, with a low around 68. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 87. Heat index values as high as 99. Calm wind becoming southwest 5 to 8 mph in the morning.
Thursday Night
A slight chance of showers and thunderstorms between 8pm and midnight. Partly cloudy, with a low around 71. Light southwest wind. Chance of precipitation is 20%.
Friday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Friday Night
A 40 percent chance of showers before midnight. Mostly cloudy, with a low around 70.
Saturday
Partly sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
Sunny, with a high near 87.
Sunday Night
Mostly clear, with a low around 68.
Monday
Sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
A 40 percent chance of showers. Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Salem CT
 41.47°N 72.35°W (Elev. 397 ft)
Last Update:
5:07 am EDT Aug 5, 2026
Forecast Valid:
9am EDT Aug 5, 2026-6pm EDT Aug 11, 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