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Port Jefferson, NY Weather Forecast




Port Jefferson, New York

 Lat: 40.95N, Lon: 73.06W


Mostly Cloudy
Temp: 78°F
  • Humidity:
  • 71%
  • Winds:
  • 3 MPH VRB
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.04 in.
  • Dewpoint:
  • 68°F
  • Heat index:
  • 80°F

THIS AFTERNOON

MOSTLY SUNNY
Hi: 79°F
Lo: 67°F

WEDNESDAY

CHANCE OF SHOWERS
Hi: 79°F
Lo: 65°F
Precip: 20%

THURSDAY

MOSTLY SUNNY
Hi: 79°F
Lo: 55°F

FRIDAY

SUNNY
Hi: 70°F
Lo: 51°F
This Afternoon...Mostly sunny. Highs in the upper 70s. East winds 5 to 10 mph.
Tonight...Partly cloudy. Patchy fog after midnight. Humid with lows in the upper 60s. Southeast winds around 5 mph, becoming northeast after midnight.
Wednesday...Mostly cloudy. Patchy fog in the morning. A slight chance of showers in the afternoon. Humid with highs in the upper 70s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.
Wednesday Night...Mostly cloudy. A slight chance of showers after midnight. Lows in the mid 60s. East winds 5 to 10 mph, becoming northeast after midnight. Chance of rain 20 percent.
Thursday...Mostly sunny. Less humid with highs in the upper 70s. North winds 10 to 15 mph with gusts up to 25 mph.
Thursday Night...Mostly clear. Lows in the mid 50s.
Friday...Sunny. Highs around 70.
Friday Night...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s.
Saturday...Partly sunny. Highs in the upper 60s.
Saturday Night...Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 50s.
Sunday...Sunny. Highs in the upper 60s.
Sunday Night...Mostly clear. Lows in the lower 50s.
Monday...Sunny. Highs around 70.
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