GROTON, CT 06340 Weather Forecast & Current Conditions

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06340 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
GROTON, CT Current Weather
4:56 PM EDT SEP 30, 2026
Overcast 66°F
Feels Like:	66°F
Dewpoint:	57°F
Rel. Hum.:	73%
Visibility:	10 miles
Wind:	WSW at 6 mph
Pressure:	30.06 inches
Last 72 hours
Local Area Snow Depth
Connecticut Current Weather
Connecticut MOS Forecast Weather

Regional Weather Maps

(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

THIS AFTERNOON
Partly sunny. Near steady temperature in the upper 60s. Southwest winds 5 to 10 mph.

TONIGHT
Mostly cloudy. Lows in the upper 50s. Southwest winds around 5 mph.

THURSDAY
Mostly cloudy in the morning, then becoming partly sunny. Highs in the mid 70s. Southwest winds 5 to 10 mph.

THURSDAY NIGHT
Partly cloudy. Lows in the mid 60s. Southwest winds 5 to 10 mph.

FRIDAY
Mostly sunny. Highs in the upper 70s. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the afternoon.

FRIDAY NIGHT
Mostly cloudy with a 50 percent chance of showers. Lows in the upper 50s.

SATURDAY
Sunny. Highs around 70.

SATURDAY NIGHT
Mostly clear. Lows in the upper 40s.

SUNDAY
Mostly sunny. Highs in the mid 60s.

SUNDAY NIGHT
Partly cloudy. Lows in the lower 50s.

MONDAY
Mostly sunny. Highs in the upper 60s.

MONDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 40s.

TUESDAY
Sunny. Highs in the upper 50s.

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 AM CDT 9/30/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

TIME
EDT

TEMP
(deg. F)

FEELS
LIKE

CLOUD
COVER

PRECIP
PROB.

THUNDER
PROB.

WIND
dir./mph

REL
HUM

DEWPT
(deg. F)

Wednesday
30 SEP 2026

2 PM

68°

Partly Cloudy

0% Thunder
( 0% severe)

SSW 7

73%

59°

High 69°

5 PM

68°

Mostly Cloudy

SSW 6

70%

58°

Mostly Cloudy

8 PM

62°

Partly Cloudy

0% Thunder
( 0% severe)

SSW 5

90%

59°

11 PM

60°

Mostly Cloudy

SW 5

100%

60°

Thursday
1 OCT 2026

2 AM

60°

61°

Mostly Cloudy

0% Thunder
( 2% severe)

SW 3

100%

60°

Low 58°

5 AM

61°

Mostly Cloudy

SW 5

100%

61°

High 73°

8 AM

63°

Mostly Cloudy

0% Thunder
( 1% severe)

WSW 6

100%

63°

Mostly Cloudy

11 AM

71°

Partly Cloudy

SW 10

79%

64°

2 PM

73°

Mostly Cloudy

0% Thunder
( 0% severe)

SW 12

76%

65°

5 PM

72°

Partly Cloudy

SW 12

76%

64°

8 PM

67°

Partly Cloudy

0% Thunder
( 0% severe)

SW 9

90%

64°

11 PM

66°

Partly Cloudy

SW 8

93%

64°

Friday
2 OCT 2026

2 AM

66°

Partly Cloudy

0% Thunder
( 1% severe)

SW 8

93%

64°

Low 64°

5 AM

66°

Partly Cloudy

SW 9

93%

64°

High 77°

8 AM

67°

Partly Cloudy

0% Thunder
( 1% severe)

SW 9

90%

64°

Partly Cloudy

11 AM

75°

Partly Cloudy

SW 12

71%

65°

2 PM

77°

79°

Partly Cloudy

0% Thunder
( 4% severe)

SW 13

67%

65°

5 PM

75°

Partly Cloudy

SW 12

71%

65°

8 PM

70°

Mostly Cloudy

WSW 9

81%

64°


GROTON, CT extended weather forecast
Saturday 3 OCT 2026	Sunday 4 OCT 2026	Monday 5 OCT 2026	Tuesday 6 OCT 2026	Wednesday 7 OCT 2026
Low 58°	Low 49°	Low 51°	Low 47°	Low 43°
High 68°	High 66°	High 71°	High 58°	High 61°

Partly Cloudy 38% Rain	Partly Cloudy 19% Rain	Mostly Cloudy 41% Rain	Partly Cloudy 28% Rain	Clear 15% Rain