Marine Weather Net

Old Lyme, CT Weather Forecast


Marine Forecast:


Old Lyme, Connecticut

 Lat: 41.32N, Lon: 72.33W

Current Conditions Updated: 1256 AM EDT SAT APR 4 2026

Partly Cloudy
Temp: 52°F
  • Humidity:
  • 96%
  • Winds:
  • 7 MPH WSW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.09 in.
  • Dewpoint:
  • 51°F
  • Heat index:
  • 52°F

  • Sunrise:
  • 6:26 AM EDT
  • Sunset:
  • 7:16 PM EDT
  • Moonrise:
  • 10:23 PM EDT
  • Moonset:
  • 7:15 AM EDT

TODAY

MOSTLY SUNNY
Hi: 61°F
Lo: 39°F

SUNDAY

CHANCE OF T-STORM
Hi: 59°F
Lo: 37°F
Precip: 100%

MONDAY

MOSTLY SUNNY
Hi: 51°F
Lo: 35°F

TUESDAY

PARTLY SUNNY
Hi: 49°F
Lo: 25°F
Precip: 40%
Weather Forecast In Detail:
Forecast Issued: 235 AM EDT Sat Apr 04 2026

Today...Patchy dense fog this morning. Mostly sunny. Visibility one quarter mile or less at Times this morning. Highs in the lower 60s. North winds around 5 mph, becoming east with gusts up to 20 mph this afternoon.
Tonight...Mostly cloudy with a 50 percent chance of rain. Lows in the upper 30s. East winds 5 to 10 mph with gusts up to 25 mph.
Sunday...Rain with a slight chance of thunderstorms. Highs in the upper 50s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.
Sunday Night...Mostly cloudy with rain likely in the evening, then partly cloudy after midnight. Lows in the upper 30s. West winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent.
Monday...Mostly sunny. Highs in the lower 50s. West winds 5 to 10 mph with gusts up to 25 mph.
Monday Night...Partly cloudy. Lows in the mid 30s.
Tuesday...Partly sunny. A chance of rain showers. Highs in the upper 40s. Chance of rain 40 percent.
Tuesday Night...Partly cloudy. A chance of rain showers in the evening. Cold with lows in the mid 20s. Chance of rain 30 percent.
Wednesday...Sunny. Highs in the upper 40s.
Wednesday Night...Mostly clear. Lows in the lower 30s.
Thursday...Sunny. Highs in the mid 50s.
Thursday Night...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s.
Friday...Mostly sunny. Highs in the lower 60s.
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