Marine Weather Net

Port Jefferson, NY Weather Forecast




Port Jefferson, New York

 Lat: 40.95N, Lon: 73.06W

Current Conditions Updated: 156 PM EDT WED MAR 26 2025

Mostly Cloudy
Temp: 50°F
  • Humidity:
  • 34%
  • Winds:
  • 10 MPH WNW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.98 in.
  • Dewpoint:
  • 23°F
  • Heat index:
  • 50°F

  • Sunrise:
  • 6:44 AM EDT
  • Sunset:
  • 7:09 PM EDT
  • Moonrise:
  • 5:25 AM EDT
  • Moonset:
  • 3:58 PM EDT

TODAY

PARTLY SUNNY
Hi: 51°F
Lo: 31°F
Precip: 30%

THURSDAY

SUNNY

Hi: 50°F
Lo: 39°F

FRIDAY

MOSTLY SUNNY
Hi: 59°F
Lo: 45°F

SATURDAY

PARTLY SUNNY
Hi: 69°F
Lo: 49°F
Precip: 50%
Weather Forecast In Detail:
Forecast Issued: 933 AM EDT Wed Mar 26 2025

Today...Partly sunny. A chance of showers this afternoon. Highs in the lower 50s. Northwest winds around 5 mph, becoming west 10 to 15 mph this afternoon. Chance of rain 30 percent.
Tonight...Partly cloudy with a slight chance of rain showers in the evening, then mostly clear after midnight. Lows in the lower 30s. Northwest winds 10 to 15 mph. Chance of rain 20 percent.
Thursday...Sunny. Highs around 50. West winds 10 to 15 mph.
Thursday Night...Partly cloudy. Lows in the upper 30s. Southwest winds 5 to 10 mph.
Friday...Mostly sunny. Highs in the upper 50s. West winds 5 to 10 mph.
Friday Night...Mostly cloudy with a 50 percent chance of showers. Lows in the mid 40s.
Saturday...Partly sunny. A chance of showers in the morning. Highs in the upper 60s. Chance of rain 50 percent.
Saturday Night...Mostly cloudy with a 50 percent chance of showers. Lows in the upper 40s.
Sunday...Mostly cloudy with a 50 percent chance of showers. Highs in the upper 50s.
Sunday Night...Mostly cloudy with a 50 percent chance of showers. Lows in the upper 40s.
Monday...Mostly cloudy in the morning, then becoming partly sunny. A 50 percent chance of showers. Highs around 60.
Monday Night...Mostly cloudy with a 50 percent chance of showers. Lows in the mid 30s.
Tuesday...Partly sunny. A chance of showers in the morning. Highs in the upper 40s. Chance of rain 30 percent.
SHARE THIS PAGE: