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
3:56 PM EDT MAY 14, 2025
Overcast
66°F
Feels Like: 66°F
Dewpoint: 55°F
Rel. Hum.: 68%
Visibility: 10 miles
Wind: ESE at 13 mph
Pressure: 30.10 inches
Last 72 hours

Local Area Snow Depth

Connecticut Current Weather

Connecticut MOS Forecast Weather


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(Automated weather data from NWS/FAA)
  06349 WEATHER FORECAST
10-Day model forecast maps
2024 Hurricanes

SUB BASE NEW LONDON, CT 06349
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
TONIGHT
Showers likely with a slight chance of thunderstorms this evening, then showers likely after midnight. Patchy fog after midnight. Lows in the upper 50s. Southeast winds 5 to 10 mph. Gusts up to 20 mph this evening. Chance of rain 70 percent.
THURSDAY
Cloudy. A chance of showers in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Patchy fog. Highs in the lower 70s. Southeast winds around 5 mph. Chance of rain 40 percent.
THURSDAY NIGHT
Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows around 60. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 30 percent.
FRIDAY
Mostly cloudy in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. South winds 5 to 10 mph. Chance of rain 20 percent.
FRIDAY NIGHT
Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the upper 50s. South winds around 5 mph. Chance of rain 30 percent.
SATURDAY
Mostly cloudy. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 50 percent.
SATURDAY NIGHT
Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy with a chance of showers after midnight. Lows in the upper 50s. Chance of rain 50 percent.
SUNDAY
Mostly sunny. Highs in the mid 70s.
SUNDAY NIGHT
Partly cloudy. Lows around 50.
MONDAY
Mostly sunny. Highs in the upper 60s.
MONDAY NIGHT
Partly cloudy. Lows in the upper 40s.
TUESDAY
Mostly sunny. Highs in the mid 60s.
TUESDAY NIGHT
Mostly cloudy. Lows in the upper 40s.

  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  5/14/2025
Wednesday
14 MAY 2025		 SUB BASE NEW LONDON, CT 06349 weather forecast Day 1, 12 hours 2 PM 62° 61° Mostly Cloudy 54%
RAIN
***		 0% Thunder
( 8% severe)		 ESE   12 81% 56°
High 63° SUB BASE NEW LONDON, CT 06349 weather forecast Day 1, 15 hours 5 PM 61° 59° Mostly Cloudy ESE   12 84% 56°
Mostly Cloudy

Rain Likely

 SUB BASE NEW LONDON, CT 06349 weather forecast Day 1, 18 hours 8 PM 60° 59° Mostly Cloudy 60%
RAIN
***		 0% Thunder
( 22% severe)		 E   9 87% 56°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 1, 21 hours 11 PM 58° 56° Mostly Cloudy ESE   9 93% 56°
Thursday
15 MAY 2025		 SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 0 hours 2 AM 57° 56° Mostly Cloudy 41%
RAIN
.25–.5 in		 0% Thunder
( 11% severe)		 ESE   7 96% 56°
Low 55° SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 3 hours 5 AM 57° 56° Overcast E   6 100% 57°
High 67° SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 6 hours 8 AM 59° 59° Mostly Cloudy 15%
RAIN
.1–.25 in		 0% Thunder
( 4% severe)		 E   5 96% 58°

Mostly Cloudy



 SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 9 hours 11 AM 62° 62° Mostly Cloudy E   5 90% 59°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 12 hours 2 PM 64° 65° Mostly Cloudy 16%
RAIN
<.01 in		 0% Thunder
( 12% severe)		 SE   5 87% 60°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 15 hours 5 PM 64° 65° Mostly Cloudy SE   3 84% 59°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 18 hours 8 PM 61° 62° Mostly Cloudy 6%

 0% Thunder
( 3% severe)		 ESE   1 90% 58°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 21 hours 11 PM 59° 60° Mostly Cloudy   CALM 96% 58°
Friday
16 MAY 2025		 SUB BASE NEW LONDON, CT 06349 weather forecast Day 3, 0 hours 2 AM 58° 59° Mostly Cloudy 1%

 0% Thunder
( 1% severe)		   CALM 96% 57°
Low 56° SUB BASE NEW LONDON, CT 06349 weather forecast Day 3, 3 hours 5 AM 58° 59° Mostly Cloudy   CALM 100% 58°
High 71° SUB BASE NEW LONDON, CT 06349 weather forecast Day 3, 6 hours 8 AM 61° 62° Mostly Cloudy 1%

 0% Thunder
( 2% severe)		   CALM 93% 59°

Mostly Cloudy

Chance of Rain

 SUB BASE NEW LONDON, CT 06349 weather forecast Day 3, 9 hours 11 AM 66° 66° Mostly Cloudy S   2 81% 60°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 3, 15 hours 2 PM 67° 67° Mostly Cloudy 20%
RAIN
<.01 in		 0% Thunder
( 6% severe)		 S   7 78% 60°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 3, 18 hours 5 PM 66° 66° Mostly Cloudy S   7 78% 59°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 3, 21 hours 8 PM 63° 64° Mostly Cloudy     SSW   3 87% 59°

GROTON, CT extended weather forecast
Saturday
17 MAY 2025		 Sunday
18 MAY 2025		 Monday
19 MAY 2025		 Tuesday
20 MAY 2025		 Wednesday
21 MAY 2025
Low 54° Low 55° Low 46° Low 42° Low 45°
High 67° High 67° High 60° High 59° High 64°
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
Overcast
76% Rain		 Overcast
44% Rain		 Partly Cloudy
33% Rain		 Mostly Cloudy
26% Rain		 Overcast
31% Rain
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