COLCHESTER, CT 06420 Weather Forecast & Current Conditions

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06420 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
GROTON, CT Current Weather
8:56 PM EDT JUN 8, 2026
Clear 59°F
Feels Like:	58°F
Dewpoint:	52°F
Rel. Hum.:	78%
Visibility:	10 miles
Wind:	SW at 7 mph
Pressure:	30.24 inches
Last 72 hours
Local Area Snow Depth
Connecticut Current Weather
Connecticut MOS Forecast Weather

Regional Weather Maps

(Automated weather data from NWS/FAA)

06420 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	COLCHESTER, CT 06420 Weather Forecast	Snowfall Forecast pages Snow Depth pages

THIS AFTERNOON
Sunny. Highs in the upper 70s. South winds 5 to 10 mph.

TONIGHT
Mostly clear. Lows in the lower 50s. Southwest winds 5 to 10 mph.

TUESDAY
Sunny. Highs in the upper 70s. Southwest winds 10 to 15 mph.

TUESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the evening.

WEDNESDAY
Partly sunny with a slight chance of showers in the morning, then mostly cloudy with showers likely in the afternoon. More humid with highs in the mid 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 60 percent.

WEDNESDAY NIGHT
Showers likely. Lows in the lower 60s. Chance of rain 70 percent.

THURSDAY
Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50 percent. Heat index values in the mid 90s in the afternoon.

THURSDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 60s. Chance of rain 50 percent.

FRIDAY
Partly sunny. A chance of showers in the afternoon. Highs in the upper 80s. Chance of rain 30 percent.

FRIDAY NIGHT
Mostly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 40 percent.

SATURDAY
Mostly sunny. Highs in the mid 80s.

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

SUNDAY
Mostly sunny. Highs in the mid 80s.

06420 WEATHER SATELLITE LOOPS

Visible Weather Satellite
COLCHESTER, CT 06420

Infrared Weather Satellite
COLCHESTER, CT 06420

06420 WEATHER RADAR LOOP

NEXRAD Weather Radar
COLCHESTER, CT 06420

MOS COMPUTER WEATHER FORECAST

GROTON, CT 3 hourly weather forecast

weather forecast created 7:00 AM CDT 6/ 8/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
8 JUN 2026

2 PM

75°

75°

Clear

0%

0% Thunder
( 0% severe)

SSE 9

41%

50°

High 76°

5 PM

72°

72°

Partly Cloudy

S 9

46%

50°

Partly Cloudy

8 PM

65°

65°

Partly Cloudy

0%

0% Thunder
( 0% severe)

SSW 7

60%

51°

11 PM

60°

59°

Clear

SW 7

75%

52°

Tuesday
9 JUN 2026

2 AM

59°

58°

Clear

0%

0% Thunder
( 0% severe)

WSW 6

75%

51°

Low 55°

5 AM

58°

56°

Clear

W 8

72%

49°

High 81°

8 AM

66°

66°

Clear

0%

0% Thunder
( 0% severe)

WSW 9

52%

48°

Clear

11 AM

76°

78°

Clear

WSW 13

37%

48°

2 PM

80°

79°

Clear

0%

0% Thunder
( 0% severe)

SW 14

33%

48°

5 PM

78°

78°

Clear

SW 14

36%

49°

8 PM

68°

68°

Clear

0%

0% Thunder
( 1% severe)

SW 12

54%

51°

11 PM

64°

64°

Partly Cloudy

SW 9

70%

54°

Wednesday
10 JUN 2026

2 AM

63°

63°

Partly Cloudy

1%

0% Thunder
( 1% severe)

SW 8

78%

56°

Low 59°

5 AM

62°

61°

Partly Cloudy

SW 8

84%

57°

High 76°

8 AM

69°

69°

Mostly Cloudy

16%
RAIN
<.01 in

0% Thunder
( 4% severe)

SW 9

66%

57°

Mostly Cloudy

Chance of Rain

11 AM

76°

78°

Mostly Cloudy

SSW 13

58%

60°

2 PM

76°

78°

Mostly Cloudy

39%
RAIN
.1–.25 in

0% Thunder
( 11% severe)

SSW 14

62%

62°

5 PM

74°

74°

Mostly Cloudy

SSW 13

69%

63°

8 PM

69°

69°

Mostly Cloudy

SSW 10

84%

64°


GROTON, CT extended weather forecast
Thursday 11 JUN 2026	Friday 12 JUN 2026	Saturday 13 JUN 2026	Sunday 14 JUN 2026	Monday 15 JUN 2026
Low 63°	Low 64°	Low 60°	Low 60°	Low 57°
High 81°	High 76°	High 72°	High 76°	High 73°

Overcast 80% Rain	Overcast 48% Rain	Overcast 42% Rain	Mostly Cloudy 35% Rain	Partly Cloudy 23% Rain

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Colchester, CT
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