National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

81°F

27°C

Humidity 57%
Wind Speed SW 10 mph
Barometer 30.07 in (1018.0 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 29 Jun 2:56 pm EDT
Extended Forecast for

3 Miles SSE Waterford CT

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

  • Tonight

    Tonight: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 63. South wind 5 to 7 mph becoming calm in the evening.

    Low: 63 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. South wind 5 to 11 mph, with gusts as high as 22 mph.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 68. Southwest wind 9 to 14 mph.

    Low: 68 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 85. Southwest wind 9 to 14 mph.

    High: 85 °F

    Chance
    T-storms then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71. Southwest wind 6 to 8 mph.

    Low: 71 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 72.

    Low: 72 °F

    Clear

  • Friday

    Friday: A 30 percent chance of showers after 2pm. Sunny, with a high near 94.

    High: 94 °F

    Sunny then
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    Showers then
    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 63. South wind 5 to 7 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 78. South wind 5 to 11 mph, with gusts as high as 22 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 68. Southwest wind 9 to 14 mph.
Wednesday
A 30 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 85. Southwest wind 9 to 14 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71. Southwest wind 6 to 8 mph.
Thursday
Sunny, with a high near 90.
Thursday Night
Clear, with a low around 72.
Friday
A 30 percent chance of showers after 2pm. Sunny, with a high near 94.
Friday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 71.
Independence Day
A 40 percent chance of showers after 2pm. Mostly sunny, with a high near 90.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 69.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 68.
Monday
A 30 percent chance of showers. Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Waterford CT
 41.3°N 72.12°W (Elev. 23 ft)
Last Update:
2:56 pm EDT Jun 29, 2026
Forecast Valid:
3pm EDT Jun 29, 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