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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.

Fair

72°F

22°C

Humidity 87%
Wind Speed S 6 mph
Barometer 30.11 in (1019.4 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 30 Jun 9:56 am EDT
Extended Forecast for

Salem CT

Extreme Heat Watch July 1, 12:00pm until July 4, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Today

    Today: Mostly sunny, with a high near 86. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly between 8pm and 11pm. Mostly cloudy, with a low around 66. South wind 6 to 9 mph, with gusts as high as 21 mph.

    Low: 66 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 99. Southwest wind 8 to 10 mph, with gusts as high as 22 mph.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 71. Southwest wind 3 to 8 mph.

    Low: 71 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and hot, with a high near 100. Light west wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 75.

    Low: 75 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 98.

    High: 98 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Independence Day

    Independence Day: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 97.

    High: 97 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 86. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Tonight
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 11pm. Mostly cloudy, with a low around 66. South wind 6 to 9 mph, with gusts as high as 21 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Heat index values as high as 99. Southwest wind 8 to 10 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 71. Southwest wind 3 to 8 mph.
Thursday
Sunny and hot, with a high near 100. Light west wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Clear, with a low around 75.
Friday
Sunny, with a high near 98.
Friday Night
Mostly clear, with a low around 73.
Independence Day
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 97.
Saturday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 93.
Sunday Night
A 30 percent chance of showers. Partly cloudy, with a low around 67.
Monday
A 40 percent chance of showers. Partly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Salem CT
 41.48°N 72.29°W (Elev. 308 ft)
Last Update:
7:08 am EDT Jun 30, 2026
Forecast Valid:
10am EDT Jun 30, 2026-6pm EDT Jul 6, 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