Marine Weather Net

Old Lyme, CT Weather Forecast


Marine Forecast:


Old Lyme, Connecticut

 Lat: 41.32N, Lon: 72.33W

Current Conditions Updated: 556 PM EDT SAT APR 18 2026

Overcast
Temp: 49°F
  • Humidity:
  • 86%
  • Winds:
  • 16 MPH ESE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.01 in.
  • Dewpoint:
  • 45°F
  • Heat index:
  • 49°F

  • Sunrise:
  • 6:03 AM EDT
  • Sunset:
  • 7:31 PM EDT
  • Moonrise:
  • 6:20 AM EDT
  • Moonset:
  • 9:34 PM EDT

THIS AFTERNOON

MOSTLY CLOUDY
Lo: 45°F

SUNDAY

SHOWERS
Hi: 55°F
Lo: 35°F
Precip: 100%

MONDAY

PARTLY SUNNY
Hi: 50°F
Lo: 30°F
Precip: 20%

TUESDAY

SUNNY

Hi: 51°F
Lo: 39°F
Weather Forecast In Detail:
Forecast Issued: 221 PM EDT Sat Apr 18 2026

This Afternoon...Mostly cloudy. Near steady temperature around 60. East winds 5 to 10 mph with gusts up to 20 mph.
Tonight...Mostly cloudy. Patchy fog in the evening, then areas of fog after midnight. Lows in the mid 40s. Southeast winds around 5 mph.
Sunday...Patchy fog in the morning. Showers. Highs in the mid 50s. South winds 5 to 10 mph with gusts up to 20 mph, becoming northwest 10 to 15 mph with gusts up to 30 mph in the afternoon. Chance of rain near 100 percent.
Sunday Night...Partly cloudy with a chance of rain showers in the evening, then mostly clear after midnight. Lows in the mid 30s. West winds 5 to 10 mph. Gusts up to 25 mph in the evening. Chance of rain 50 percent.
Monday...Partly sunny. A slight chance of rain showers in the afternoon. Highs around 50. Northwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent.
Monday Night...Partly cloudy in the evening, then clearing. Lows around 30.
Tuesday...Sunny. Highs in the lower 50s.
Tuesday Night...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 30s.
Wednesday...Mostly cloudy. Highs in the upper 50s.
Wednesday Night...Partly cloudy in the evening, then clearing. Lows in the upper 30s.
Thursday...Mostly sunny. Highs in the mid 60s.
Thursday Night...Partly cloudy. Lows in the lower 40s.
Friday...Mostly sunny. Highs in the mid 60s.
Friday Night...Partly cloudy. Lows in the lower 40s.
Saturday...Partly sunny. A chance of showers in the afternoon. Highs in the lower 60s. Chance of rain 30 percent.
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