Summer Heat and Flooding Likely Today

Dangerous and intense summer heat is likely in several locations today, from the central Plains to the Great Lakes and Northeast and in the Pacific Northwest. Meanwhile, heavy to excessive rainfall from organized areas of rain and thunderstorms are likely going to produce flood issues in the Upper Mississippi Valley. Also, monsoonal showers and storms may result in flooding in the Four Corners. Read More >

Hazardous Weather Conditions

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Current conditions at

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

Lat: 41.33°NLon: 72.05°WElev: 10ft.

Fair

79°F

26°C

Humidity	77%
Wind Speed	SW 10 mph
Barometer	30.08 in (1018.5 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	82°F (28°C)
Last update	7 Aug 8:56 pm EDT

More Information:

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

Extended Forecast for

Hadlyme CT

Heat Advisory until August 9, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory until August 9, 08:00pm

NOW until
8:00pm Tue

Heat Advisory
Tonight

Slight Chance
T-storms then
Mostly Cloudy
Low: 75 °F
Monday

Patchy Fog
then Slight
Chance
T-storms
High: 90 °F
Monday
Night

Slight Chance
T-storms
Low: 73 °F
Tuesday

Mostly Sunny
then Chance
T-storms
High: 90 °F
Tuesday
Night

Chance
T-storms then
Chance
Showers
Low: 70 °F
Wednesday

Chance
T-storms
High: 83 °F
Wednesday
Night

Showers
Likely
Low: 69 °F
Thursday

Chance
Showers
High: 80 °F

Detailed Forecast

Tonight

A 20 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 75. Southwest wind 7 to 9 mph.

Monday

A 20 percent chance of showers and thunderstorms after 2pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 90. Heat index values as high as 98. Southwest wind 7 to 13 mph.

Monday Night

A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. Southwest wind 8 to 11 mph, with gusts as high as 23 mph.

Tuesday

A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Heat index values as high as 99. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.

Tuesday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Light and variable wind.

Wednesday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.

Wednesday Night

Showers likely, mainly before 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.

Thursday

A 40 percent chance of showers. Mostly cloudy, with a high near 80.

Thursday Night

Mostly cloudy, with a low around 66.

Friday

Mostly sunny, with a high near 81.