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
4:56 AM EDT APR 5, 2026
Overcast
Mist
43°F
Feels Like: 37°F
Dewpoint: 41°F
Rel. Hum.: 93%
Visibility: 4 miles
Wind: E at 12 mph
Pressure: 30.03 inches
Last 72 hours

Local Area Snow Depth

Connecticut Current Weather

Connecticut MOS Forecast Weather


Weather Map

(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
TODAY
A chance of rain early. A slight chance of thunderstorms. Rain this afternoon. Highs in the upper 50s. Southeast winds 5 to 10 mph, becoming southwest 10 to 15 mph with gusts up to 30 mph. Chance of rain near 100 percent.
TONIGHT
Cloudy with rain likely in the evening, then partly cloudy after midnight. Lows in the mid 30s. West winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent.
MONDAY
Sunny. Highs in the lower 50s. West winds 10 to 15 mph with gusts up to 25 mph.
MONDAY NIGHT
Partly cloudy with a slight chance of rain in the evening, then mostly cloudy with a chance of rain after midnight. Lows in the mid 30s. West winds 5 to 10 mph. Gusts up to 20 mph in the evening. Chance of rain 30 percent.
TUESDAY
Partly sunny with a 40 percent chance of rain. Highs in the upper 40s. West winds 10 to 15 mph with gusts up to 25 mph.
TUESDAY NIGHT
Mostly clear. Cold with lows in the mid 20s.
WEDNESDAY
Sunny. Highs in the upper 40s.
WEDNESDAY NIGHT
Mostly clear. Lows around 30.
THURSDAY
Mostly sunny. Highs in the lower 50s.
THURSDAY NIGHT
Partly cloudy. Lows around 40.
FRIDAY
Mostly sunny. Highs in the mid 60s.
FRIDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 40s.
SATURDAY
Partly sunny. Highs in the mid 60s.

  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 PM CDT  4/ 4/2026
Sunday
5 APR 2026		 SUB BASE NEW LONDON, CT 06349 weather forecast Day 1, 0 hours 2 AM 41° 35° Mostly Cloudy 50%
RAIN
***		 0% Thunder
( 9% severe)		 E   10 89% 38°
Low 40° SUB BASE NEW LONDON, CT 06349 weather forecast Day 1, 3 hours 5 AM 43° 38° Mostly Cloudy ESE   9 93% 41°
High 55° SUB BASE NEW LONDON, CT 06349 weather forecast Day 1, 6 hours 8 AM 48° 43° Mostly Cloudy 65%
RAIN
***		 0% Thunder
( 19% severe)		 S   12 89% 45°

Mostly Cloudy

Rain

 SUB BASE NEW LONDON, CT 06349 weather forecast Day 1, 9 hours 11 AM 52° 47° Mostly Cloudy SSW   16 86% 48°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 1, 12 hours 2 PM 54° 49° Mostly Cloudy 94%
RAIN
***		 0% Thunder
( 12% severe)		 SW   17 80% 48°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 1, 15 hours 5 PM 52° 48° Mostly Cloudy SW   13 86% 48°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 1, 18 hours 8 PM 51° 47° Mostly Cloudy 14%
RAIN
.01–.1 in		 0% Thunder
( 1% severe)		 WSW   10 80% 45°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 1, 21 hours 11 PM 48° 44° Mostly Cloudy NW   9 77% 41°
Monday
6 APR 2026		 SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 0 hours 2 AM 43° 38° Partly Cloudy 2%

 0% Thunder
( 0% severe)		 NW   9 68% 33°
Low 38° SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 3 hours 5 AM 40° 33° Clear WNW   10 67% 30°
High 51° SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 6 hours 8 AM 40° 33° Clear 1%

 0% Thunder
( 0% severe)		 WNW   12 62% 28°

Partly Cloudy



 SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 9 hours 11 AM 45° 39° Partly Cloudy W   13 49% 27°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 12 hours 2 PM 49° 44° Partly Cloudy 2%

 0% Thunder
( 1% severe)		 W   14 42% 27°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 15 hours 5 PM 49° 44° Partly Cloudy W   12 44% 28°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 18 hours 8 PM 45° 41° Partly Cloudy 7%

 0% Thunder
( 2% severe)		 W   7 53% 29°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 2, 21 hours 11 PM 41° 38° Partly Cloudy WNW   5 65% 30°

GROTON, CT extended weather forecast
Tuesday
7 APR 2026		 Wednesday
8 APR 2026		 Thursday
9 APR 2026		 Friday
10 APR 2026		 Saturday
11 APR 2026
Low 32° Low 27° Low 30° Low 40° Low 44°
High 52° High 45° High 53° High 60° High 59°
SUB BASE NEW LONDON, CT 06349 weather forecast Day 3 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
Partly Cloudy
15% Rain/Snow		 Clear
1% Snow		 Clear
15% Rain/Snow		 Overcast
32% Rain		 Partly Cloudy
26% Rain
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