Dangerous Heat in the Central and Eastern U.S.; Critical Fire Weather in the Great Basin and 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 Tuesday across portions of the Four Corners and Great Basin, as dry conditions and gusty winds persist. 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

68°F

20°C

Humidity	93%
Wind Speed	E 3 mph
Barometer	30.12 in (1020.0 mb)
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Last update	29 Jun 11:56 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles SE Hadlyme CT

Extreme Heat Watch July 1, 12:00pm until July 4, 09:00pm

Click here for hazard details and duration

Extreme Heat Watch

Overnight
Low: 63 °F
Patchy Fog
Tuesday
High: 86 °F
Mostly Sunny
Tuesday Night
Low: 68 °F
Chance
T-storms
Wednesday
High: 90 °F
Chance
T-storms then
Mostly Sunny
Wednesday Night
Low: 72 °F
Slight Chance
T-storms
Thursday
High: 99 °F
Sunny
Thursday Night
Low: 74 °F
Clear
Friday
High: 99 °F
Sunny then
Chance
Showers
Friday Night
Low: 73 °F
Chance
Showers then
Mostly Clear

Detailed Forecast

Overnight

Patchy fog. Otherwise, partly cloudy, with a low around 63. Calm wind.

Tuesday

Mostly sunny, with a high near 86. South wind 5 to 10 mph, with gusts as high as 21 mph.

Tuesday Night

A 30 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 68. Southwest wind 7 to 13 mph.

Wednesday

A 30 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 90. Heat index values as high as 97. Southwest wind 8 to 13 mph.

Wednesday Night

A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 72. Southwest wind 3 to 6 mph.

Thursday

Sunny, with a high near 99.

Thursday Night

Clear, with a low around 74.

Friday

A 30 percent chance of showers after 2pm. Sunny, with a high near 99.

Friday Night

A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 73.

Independence Day

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