GROTON, CT 06340 Weather Forecast & Current Conditions

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06340 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
GROTON, CT Current Weather
3:56 PM EDT SEP 16, 2026
Clear 72°F
Feels Like:	72°F
Dewpoint:	63°F
Rel. Hum.:	73%
Visibility:	10 miles
Wind:	WSW at 7 mph
Pressure:	30.30 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

TONIGHT
Mostly clear. Patchy fog. Lows in the lower 60s. Southwest winds around 5 mph.

THURSDAY
Patchy fog in the morning. Mostly sunny. Humid with highs in the upper 70s. South winds 5 to 10 mph.

THURSDAY NIGHT
Mostly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 60s. Southwest winds 5 to 10 mph. Chance of rain 40 percent.

FRIDAY
Sunny. A slight chance of showers in the morning. Highs in the upper 70s. Northwest winds 5 to 10 mph. Chance of rain 20 percent.

FRIDAY NIGHT
Partly cloudy. Less humid with lows in the lower 50s. North winds 5 to 10 mph.

SATURDAY
Mostly sunny. Highs in the upper 60s.

SATURDAY NIGHT
Mostly cloudy. Lows in the lower 50s.

SUNDAY
Mostly cloudy. A chance of showers in the morning, then showers likely in the afternoon. Highs in the upper 60s. Chance of rain 70 percent.

SUNDAY NIGHT
Showers likely. Lows in the mid 50s. Chance of rain 70 percent.

MONDAY
Partly sunny with a 40 percent chance of showers. Highs in the upper 60s.

MONDAY NIGHT
Mostly cloudy with a 40 percent chance of showers. Lows in the lower 50s.

TUESDAY
Mostly cloudy in the morning, then becoming partly sunny. A 40 percent chance of showers. Highs in the upper 60s.

TUESDAY NIGHT
Mostly cloudy. Lows in the lower 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 9/16/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
16 SEP 2026

2 PM

72°

72°

Partly Cloudy

2%

0% Thunder
( 0% severe)

SW 10

71%

62°

High 73°

5 PM

72°

72°

Partly Cloudy

SSW 9

73%

63°

Partly Cloudy

8 PM

67°

67°

Partly Cloudy

1%

0% Thunder
( 0% severe)

SW 6

87%

63°

11 PM

65°

65°

Clear

SW 3

97%

64°

Thursday
17 SEP 2026

2 AM

64°

66°

Partly Cloudy

1%

0% Thunder
( 0% severe)

CALM

97%

63°

Low 62°

5 AM

64°

66°

Partly Cloudy

CALM

100%

64°

High 77°

8 AM

68°

68°

Partly Cloudy

3%

0% Thunder
( 2% severe)

CALM

93%

66°

Partly Cloudy

11 AM

76°

77°

Partly Cloudy

S 8

76%

68°

2 PM

77°

79°

Partly Cloudy

6%

0% Thunder
( 4% severe)

SSW 10

74%

68°

5 PM

75°

75°

Mostly Cloudy

SSW 10

76%

67°

8 PM

70°

70°

Mostly Cloudy

11%
RAIN
<.01 in

0% Thunder
( 11% severe)

SSW 9

87%

66°

11 PM

69°

69°

Mostly Cloudy

SSW 9

90%

66°

Friday
18 SEP 2026

2 AM

68°

68°

Mostly Cloudy

41%
RAIN
1–2 in

0% Thunder
( 8% severe)

SW 9

93%

66°

Low 66°

5 AM

68°

68°

Mostly Cloudy

WSW 9

97%

67°

High 78°

8 AM

69°

69°

Partly Cloudy

5%

0% Thunder
( 1% severe)

NW 9

93%

67°

Partly Cloudy

11 AM

75°

75°

Partly Cloudy

NNW 12

69%

64°

2 PM

78°

80°

Clear

0%

0% Thunder
( 0% severe)

NNW 10

56%

61°

5 PM

76°

78°

Clear

NNW 9

58%

60°

8 PM

66°

66°

Partly Cloudy

N 8

65%

54°


GROTON, CT extended weather forecast
Saturday 19 SEP 2026	Sunday 20 SEP 2026	Monday 21 SEP 2026	Tuesday 22 SEP 2026	Wednesday 23 SEP 2026
Low 49°	Low 54°	Low 59°	Low 52°	Low 54°
High 66°	High 71°	High 68°	High 65°	High 69°

Partly Cloudy 4% Rain	Overcast 64% Rain	Mostly Cloudy 50% Rain	Overcast 52% Rain	Overcast 59% Rain

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