Port Jefferson, NY Weather Forecast
Marine Forecast: Long Island Sound West of New Haven
Port Jefferson, New York
Lat: 40.95N, Lon: 73.06W
Mostly Cloudy
Temp: 71°F
- Humidity:
- 50%
- Winds:
- 17 MPH NNW
- Gusts:
- N/A MPH
- Barometer:
- 30 in.
- Dewpoint:
- 52°F
- Heat index:
- 77°F
- Sunrise:
- 5:26 AM EDT
- Sunset:
- 8:10 PM EDT
- Moonrise:
- 12:35 AM EDT
- Moonset:
- 10:25 AM EDT
| Tonight...Mostly clear. Lows in the mid 50s. North winds 10 to 15 mph with gusts up to 25 mph, becoming southeast around 5 mph after midnight. |
| Saturday...Sunny. Highs around 70. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the afternoon. |
| Saturday Night...Mostly cloudy. A slight chance of showers in the evening, then a chance of showers with isolated thunderstorms after midnight. Lows in the upper 50s. South winds around 10 mph. Gusts up to 25 mph in the evening. Chance of rain 50 percent. |
| Sunday...Mostly sunny with a slight chance of showers and thunderstorms. More humid with highs in the lower 80s. West winds 5 to 10 mph. Chance of rain 20 percent. |
| Sunday Night...Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly cloudy after midnight. Lows in the lower 60s. Northwest winds 5 to 10 mph, becoming north after midnight. Chance of rain 20 percent. |
| Memorial Day...Mostly sunny. Highs in the mid 70s. |
| Monday Night...Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s. |
| Tuesday...Partly sunny in the morning, then becoming mostly cloudy. A chance of showers and thunderstorms. Highs in the lower 70s. Chance of rain 40 percent. |
| Tuesday Night...Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows in the lower 60s. Chance of rain 30 percent. |
| Wednesday...Partly sunny. Highs in the mid 70s. |
| Wednesday Night...Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 60s. Chance of rain 30 percent. |
| Thursday...Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 30 percent. |
| Thursday Night...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 60s. |
| Friday...Sunny. Highs in the lower 70s. |
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