SUB BASE NEW LONDON, CT 06349 Weather Forecast & Current Conditions
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  06349 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

GROTON, CT
Current Weather
2:56 PM EDT JUL 16, 2025
Clear
81°F
Feels Like: 89°F
Dewpoint: 79°F
Rel. Hum.: 94%
Visibility: 10 miles
Wind: S at 10 mph
Pressure: 30.01 inches
Last 72 hours

Local Area Snow Depth

Connecticut Current Weather

Connecticut MOS Forecast Weather


Regional Weather Maps

(Automated weather data from NWS/FAA)
  06349 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

SUB BASE NEW LONDON, CT 06349
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
THIS AFTERNOON
Sunny. Near steady temperature in the upper 80s. South winds 5 to 10 mph. Heat index values in the upper 90s.
TONIGHT
Mostly cloudy. Patchy fog. A chance of thunderstorms with a slight chance of showers after midnight. Some thunderstorms may produce gusty winds and heavy rainfall after midnight. Humid with lows in the lower 70s. South winds 5 to 10 mph. Chance of rain 30 percent.
THURSDAY
Patchy fog in the morning. Mostly cloudy with a chance of showers and thunderstorms likely in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Some thunderstorms may produce gusty winds and heavy rainfall in the morning. Some thunderstorms may produce gusty winds and heavy rainfall in the afternoon. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 60 percent. Heat index values in the upper 90s in the afternoon.
THURSDAY NIGHT
Partly cloudy. A chance of showers and thunderstorms in the evening. Some thunderstorms may produce gusty winds and heavy rainfall in the evening. Humid with lows in the upper 60s. Southwest winds 5 to 10 mph, becoming west after midnight. Chance of rain 40 percent.
FRIDAY
Sunny with highs in the mid 80s. Northwest winds 5 to 10 mph with gusts up to 20 mph.
FRIDAY NIGHT
Mostly clear. Lows in the lower 60s.
SATURDAY
Mostly sunny. Highs in the lower 80s.
SATURDAY NIGHT
Mostly cloudy. A chance of showers. Lows in the mid 60s. Chance of rain 40 percent.
SUNDAY
Mostly cloudy with a chance of showers and thunderstorms. Highs around 80. Chance of rain 50 percent.
SUNDAY NIGHT
Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 60s. Chance of rain 50 percent.
MONDAY
Mostly sunny. Highs in the lower 80s.
MONDAY NIGHT
Partly cloudy. Lows in the lower 60s.
TUESDAY
Mostly sunny. Highs in the lower 80s.

  06349 WEATHER SATELLITE LOOPS
Visible Weather Satellite
SUB BASE NEW LONDON, CT 06349
Infrared Weather Satellite
SUB BASE NEW LONDON, CT 06349
  06349 WEATHER RADAR LOOP
NEXRAD Weather Radar
SUB BASE NEW LONDON, CT 06349
 MOS COMPUTER WEATHER FORECAST

GROTON, CT 3 hourly weather forecast
weather forecast created  7:00 AM CDT  7/16/2025
Wednesday
16 JUL 2025		 SUB BASE NEW LONDON, CT 06349 weather forecast Day 1, 12 hours 2 PM 81° 88° Partly Cloudy 1%

 0% Thunder
( 9% severe)		 S   8 88% 77°
High 82° SUB BASE NEW LONDON, CT 06349 weather forecast Day 1, 15 hours 5 PM 81° 88° Partly Cloudy S   8 88% 77°
Mostly Cloudy



 SUB BASE NEW LONDON, CT 06349 weather forecast Day 1, 18 hours 8 PM 77° 78° Mostly Cloudy 1%

 0% Thunder
( 7% severe)		 SSW   7 94% 75°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 1, 21 hours 11 PM 75° 75° Mostly Cloudy SSW   5 97% 74°
Thursday
17 JUL 2025		 SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 0 hours 2 AM 74° 74° Mostly Cloudy 15%
RAIN
<.01 in		 0% Thunder
( 7% severe)		 SSW   5 97% 73°
Low 72° SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 3 hours 5 AM 73° 73° Mostly Cloudy SSW   5 100% 73°
High 83° SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 6 hours 8 AM 75° 75° Mostly Cloudy 33%
RAIN
<.01 in		 0% Thunder
( 23% severe)		 SSW   7 100% 75°

Mostly Cloudy

Chance of Rain

 SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 9 hours 11 AM 77° 78° Mostly Cloudy SSW   10 100% 77°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 12 hours 2 PM 80° 86° Partly Cloudy 21%
RAIN
<.01 in		 0% Thunder
( 25% severe)		 SSW   13 94% 78°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 15 hours 5 PM 81° 88° Partly Cloudy SW   12 88% 77°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 18 hours 8 PM 79° 83° Partly Cloudy 5%

 0% Thunder
( 14% severe)		 SSW   9 88% 75°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 21 hours 11 PM 77° 78° Partly Cloudy WSW   8 87% 73°
Friday
18 JUL 2025		 SUB BASE NEW LONDON, CT 06349 weather forecast Day 3, 0 hours 2 AM 76° 76° Partly Cloudy 1%

 0% Thunder
( 2% severe)		 W   8 87% 72°
Low 72° SUB BASE NEW LONDON, CT 06349 weather forecast Day 3, 3 hours 5 AM 74° 74° Partly Cloudy WNW   7 84% 69°
High 83° SUB BASE NEW LONDON, CT 06349 weather forecast Day 3, 6 hours 8 AM 75° 75° Partly Cloudy 2%

 0% Thunder
( 1% severe)		 NW   8 82% 69°

Partly Cloudy



 SUB BASE NEW LONDON, CT 06349 weather forecast Day 3, 9 hours 11 AM 78° 80° Partly Cloudy NW   10 71% 68°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 3, 15 hours 2 PM 81° 84° Partly Cloudy 4%

 0% Thunder
( 1% severe)		 WNW   9 63% 67°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 3, 18 hours 5 PM 81° 83° Partly Cloudy WNW   8 60% 66°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 3, 21 hours 8 PM 76° 78° Partly Cloudy     NNW   5 66% 64°

GROTON, CT extended weather forecast
Saturday
19 JUL 2025		 Sunday
20 JUL 2025		 Monday
21 JUL 2025		 Tuesday
22 JUL 2025		 Wednesday
23 JUL 2025
Low 60° Low 67° Low 65° Low 66° Low 67°
High 78° High 79° High 79° High 80° High 82°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 4 SUB BASE NEW LONDON, CT 06349 weather forecast Day 5 SUB BASE NEW LONDON, CT 06349 weather forecast Day 6 SUB BASE NEW LONDON, CT 06349 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Clear
9% Rain		 Mostly Cloudy
61% Rain		 Mostly Cloudy
28% Rain		 Partly Cloudy
23% Rain		 Partly Cloudy
36% Rain
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