Marine Weather Net

Groton, CT Weather Forecast


Marine Forecast:


Groton, Connecticut

 Lat: 41.35N, Lon: 72.08W

Current Conditions Updated: 456 AM EDT TUE MAY 19 2026

Clear


Temp: 60°F
  • Humidity:
  • 92%
  • Winds:
  • N/A
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.08 in.
  • Dewpoint:
  • 58°F
  • Heat index:
  • 60°F

  • Sunrise:
  • 5:24 AM EDT
  • Sunset:
  • 8:02 PM EDT
  • Moonrise:
  • 7:39 AM EDT
  • Moonset:
  • 11:51 PM EDT

TODAY

SUNNY

Hi: 81°F
Lo: 65°F

WEDNESDAY

PARTLY SUNNY
Hi: 85°F
Lo: 57°F
Precip: 90%

THURSDAY

PARTLY SUNNY
Hi: 71°F
Lo: 49°F
Precip: 20%

FRIDAY

PARTLY SUNNY
Hi: 69°F
Lo: 47°F
Weather Forecast In Detail:
Forecast Issued: 222 AM EDT Tue May 19 2026

Today...Sunny. Highs in the lower 80s. Southwest winds 5 to 10 mph. Gusts up to 25 mph this afternoon.
Tonight...Partly cloudy. Lows in the mid 60s. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the evening.
Wednesday...Sunny in the morning, then partly sunny with showers with a chance of thunderstorms in the afternoon. Highs in the mid 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent.
Wednesday Night...Mostly cloudy. Showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the upper 50s. Northwest winds 5 to 10 mph. Chance of rain 90 percent.
Thursday...Partly sunny. A slight chance of showers in the morning. Highs in the lower 70s. North winds 5 to 10 mph, becoming southeast in the afternoon. Chance of rain 20 percent.
Thursday Night...Partly cloudy. Lows in the upper 40s.
Friday...Partly sunny. Highs in the upper 60s.
Friday Night...Mostly cloudy. A chance of showers after midnight. Lows in the upper 40s. Chance of rain 50 percent.
Saturday...Showers. Highs in the lower 60s. Chance of rain 80 percent.
Saturday Night...Showers likely. Lows around 50. Chance of rain 70 percent.
Sunday...Showers likely. Highs in the mid 60s. Chance of rain 70 percent.
Sunday Night...Mostly cloudy with a 40 percent chance of showers. Lows in the lower 50s.
Memorial Day...Mostly cloudy. A chance of showers in the morning. Highs around 70. Chance of rain 40 percent.
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