GROTON, CT 06340 Weather Forecast & Current Conditions

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06340 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
GROTON, CT Current Weather
9:56 AM EDT SEP 9, 2026
Clear 72°F
Feels Like:	72°F
Dewpoint:	64°F
Rel. Hum.:	76%
Visibility:	10 miles
Wind:	ESE at 5 mph
Pressure:	30.24 inches
Last 72 hours
Local Area Snow Depth
Connecticut Current Weather
Connecticut MOS Forecast Weather

Weather Map

(Automated weather data from NWS/FAA)

06340 WEATHER FORECAST
10-Day model forecast maps 2026 Hurricanes	GROTON, CT 06340 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Mostly cloudy. Highs in the upper 70s. Light and variable winds, becoming south 10 to 15 mph with gusts up to 25 mph.

TONIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows around 70. Southwest winds 15 to 20 mph.

THURSDAY
Partly sunny. A slight chance of showers in the morning. Humid with highs in the mid 80s. West winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.

THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. A 20 percent chance of showers. Lows in the lower 60s. Northwest winds 5 to 10 mph.

FRIDAY
Sunny. Highs in the mid 70s. Northwest winds around 5 mph.

FRIDAY NIGHT
Mostly clear. Lows in the mid 50s.

SATURDAY
Mostly sunny. Highs in the mid 70s.

SATURDAY NIGHT
Partly cloudy. Lows in the lower 60s.

SUNDAY
Partly sunny with a 40 percent chance of showers. Highs in the upper 70s.

SUNDAY NIGHT
Mostly cloudy. A chance of showers in the evening. Lows in the mid 60s. Chance of rain 30 percent.

MONDAY
Mostly sunny. Highs around 80.

MONDAY NIGHT
Partly cloudy. Lows in the lower 60s.

TUESDAY
Mostly sunny. Highs in the upper 70s.

06340 WEATHER SATELLITE LOOPS

Visible Weather Satellite
GROTON, CT 06340

Infrared Weather Satellite
GROTON, CT 06340

06340 WEATHER RADAR LOOP

NEXRAD Weather Radar
GROTON, CT 06340

MOS COMPUTER WEATHER FORECAST

GROTON, CT 3 hourly weather forecast

weather forecast created 7:00 PM CDT 9/ 8/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
9 SEP 2026

2 AM

63°

64°

Partly Cloudy

2%

0% Thunder
( 0% severe)

CALM

93%

61°

Low 61°

5 AM

62°

63°

Partly Cloudy

CALM

97%

61°

High 78°

8 AM

67°

67°

Mostly Cloudy

2%

0% Thunder
( 0% severe)

CALM

90%

64°

Mostly Cloudy

11 AM

76°

78°

Partly Cloudy

S 9

71%

66°

2 PM

77°

79°

Mostly Cloudy

8%

0% Thunder
( 2% severe)

S 14

71%

67°

5 PM

76°

77°

Mostly Cloudy

SSW 14

74%

67°

8 PM

73°

73°

Mostly Cloudy

6%

0% Thunder
( 1% severe)

SSW 14

79%

66°

11 PM

73°

73°

Partly Cloudy

SW 15

79%

66°

Thursday
10 SEP 2026

2 AM

72°

72°

Mostly Cloudy

13%
RAIN
<.01 in

0% Thunder
( 9% severe)

SW 16

81%

66°

Low 70°

5 AM

72°

72°

Mostly Cloudy

SW 17

81%

66°

High 82°

8 AM

73°

73°

Mostly Cloudy

8%

0% Thunder
( 7% severe)

WSW 14

81%

67°

Partly Cloudy

Chance of Rain

11 AM

79°

81°

Partly Cloudy

WSW 14

67%

67°

2 PM

82°

85°

Partly Cloudy

31%
RAIN
***

0% Thunder
( 1% severe)

WSW 14

63%

68°

5 PM

81°

84°

Partly Cloudy

WSW 12

63%

67°

8 PM

75°

75°

Partly Cloudy

41%
RAIN
***

0% Thunder
( 1% severe)

W 7

74%

66°

11 PM

71°

71°

Mostly Cloudy

NW 6

79%

64°


GROTON, CT extended weather forecast
Friday 11 SEP 2026	Saturday 12 SEP 2026	Sunday 13 SEP 2026	Monday 14 SEP 2026	Tuesday 15 SEP 2026
Low 60°	Low 51°	Low 59°	Low 65°	Low 67°
High 76°	High 73°	High 76°	High 80°	High 80°

Partly Cloudy 8% Rain	Clear 5% Rain	Partly Cloudy 21% Rain	Mostly Cloudy 42% Rain	Mostly Cloudy 34% Rain

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