Marine Weather Net

Old Saybrook, CT Weather Forecast


Marine Forecast:


Old Saybrook, Connecticut

 Lat: 41.29N, Lon: 72.38W

Current Conditions Updated: 941 PM EDT TUE AUG 18 2026

Partly Cloudy
Temp: 71°F
  • Humidity:
  • 96%
  • Winds:
  • 5 MPH SSW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.89 in.
  • Dewpoint:
  • 70°F
  • Heat index:
  • 71°F

  • Sunrise:
  • 6:00 AM EDT
  • Sunset:
  • 7:43 PM EDT
  • Moonrise:
  • 12:37 PM EDT
  • Moonset:
  • 10:22 PM EDT

THIS AFTERNOON

MOSTLY SUNNY
Hi: 85°F
Lo: 65°F

WEDNESDAY

SUNNY

Hi: 85°F
Lo: 67°F

THURSDAY

PARTLY SUNNY
Hi: 81°F
Lo: 61°F
Precip: 20%

FRIDAY

MOSTLY SUNNY
Hi: 81°F
Lo: 61°F
Weather Forecast In Detail:
Forecast Issued: 235 PM EDT Tue Aug 18 2026

This Afternoon...Mostly sunny. Highs in the mid 80s. Southwest winds around 5 mph.
Tonight...Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the mid 60s. Southwest winds around 5 mph in the evening, becoming light and variable.
Wednesday...Sunny with highs in the mid 80s. Southwest winds around 5 mph.
Wednesday Night...Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 60s. Southwest winds around 5 mph.
Thursday...Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 80s. Northwest winds around 5 mph. Chance of rain 20 percent.
Thursday Night...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 60s.
Friday...Mostly sunny. Highs in the lower 80s.
Friday Night...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 60s.
Saturday...Partly sunny with a 50 percent chance of showers. Highs in the upper 70s.
Saturday Night...Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 60s. Chance of rain 60 percent.
Sunday...Mostly cloudy with showers likely in the morning, then partly sunny with a chance of showers in the afternoon. Highs around 80. Chance of rain 60 percent.
Sunday Night...Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers. Lows in the mid 60s. Chance of rain 50 percent.
Monday...Sunny. Highs in the upper 70s.
Monday Night...Mostly clear. Lows in the lower 60s.
Tuesday...Sunny. Highs around 80.
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