Marine Weather Net

Groton, CT Weather Forecast


Marine Forecast:


Groton, Connecticut

 Lat: 41.35N, Lon: 72.08W

Current Conditions Updated: 456 PM EDT TUE APR 14 2026

Clear


Temp: 56°F
  • Humidity:
  • 77%
  • Winds:
  • 8 MPH SSW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.85 in.
  • Dewpoint:
  • 49°F
  • Heat index:
  • 56°F

  • Sunrise:
  • 6:09 AM EDT
  • Sunset:
  • 7:26 PM EDT
  • Moonrise:
  • 4:38 AM EDT
  • Moonset:
  • 4:25 PM EDT

TODAY

MOSTLY SUNNY
Hi: 71°F
Lo: 51°F

WEDNESDAY

PARTLY SUNNY
Hi: 71°F
Lo: 51°F
Precip: 30%

THURSDAY

PARTLY SUNNY
Hi: 71°F
Lo: 55°F
Precip: 20%

FRIDAY

PARTLY SUNNY
Hi: 71°F
Lo: 49°F
Precip: 50%
Weather Forecast In Detail:
Forecast Issued: 1020 AM EDT Tue Apr 14 2026

Today...Mostly sunny. Highs in the lower 70s. South winds 5 to 10 mph.
Tonight...Mostly cloudy in the evening, then clearing. Lows in the lower 50s. Southwest winds 5 to 10 mph.
Wednesday...Partly sunny. A chance of showers in the afternoon. Highs in the lower 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 30 percent.
Wednesday Night...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the lower 50s. Southwest winds around 5 mph. Chance of rain 40 percent.
Thursday...Partly sunny with a 20 percent chance of showers. Highs in the lower 70s. South winds 5 to 10 mph.
Thursday Night...Mostly cloudy. Lows in the mid 50s.
Friday...Mostly cloudy in the morning, then becoming partly sunny. A 50 percent chance of showers. Highs in the lower 70s.
Friday Night...Mostly cloudy. A chance of showers in the evening. Lows in the upper 40s. Chance of rain 50 percent.
Saturday...Mostly cloudy in the morning, then becoming partly sunny. Highs in the lower 60s.
Saturday Night...Mostly cloudy. Lows in the upper 40s.
Sunday...Mostly cloudy. A chance of showers in the afternoon. Highs around 60. Chance of rain 40 percent.
Sunday Night...Mostly cloudy with a 50 percent chance of showers. Lows in the lower 40s.
Monday...Partly sunny. A chance of showers in the morning. Highs in the lower 50s. Chance of rain 30 percent.
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