Port Jefferson, NY Weather Forecast
Marine Forecast: Long Island Sound West of New Haven
Port Jefferson, New York
Lat: 40.95N, Lon: 73.06W
Current Conditions Updated: 456 AM EDT FRI AUG 17 2018
Clear
Temp: 74°F
- Humidity:
- 90%
- Winds:
- N/A
- Gusts:
- N/A MPH
- Barometer:
- 30.07 in.
- Dewpoint:
- 71°F
- Heat index:
- 74°F
| Today...Partly sunny. A chance of showers and thunderstorms this afternoon. Some thunderstorms May be severe with damaging winds. Locally heavy rainfall possible this afternoon. Highs in the upper 80s. Southwest winds around 5 mph, becoming south 10 to 15 mph with gusts up to 25 mph this afternoon. Chance of rain 40 percent. Heat index values in the mid 90s. |
| Tonight...Cloudy. A chance of showers and thunderstorms likely in the evening, then a chance of showers and thunderstorms after midnight. Some thunderstorms May be severe with damaging winds in the evening. Locally heavy rainfall possible in the evening. Humid with lows in the mid 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 60 percent. |
| Saturday...Mostly cloudy with a chance of showers and thunderstorms. Humid with highs in the upper 80s. West winds 5 to 10 mph. Chance of rain 50 percent. Heat index values in the mid 90s. |
| Saturday Night...Cloudy with a chance of showers and thunderstorms. Humid with lows around 70. Northwest winds 5 to 10 mph, becoming northeast 10 to 15 mph after midnight. Chance of rain 50 percent. |
| Sunday...Cloudy with a 50 percent chance of showers. Highs in the mid 70s. Northeast winds 10 to 15 mph. |
| Sunday Night...Mostly cloudy with a 50 percent chance of showers. Lows in the upper 60s. |
| Monday...Partly sunny. A chance of showers in the morning. Highs in the upper 70s. Chance of rain 30 percent. |
| Monday Night...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 60s. |
| Tuesday...Partly sunny. Highs in the upper 70s. |
| Tuesday Night...Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 50 percent. |
| Wednesday...Mostly cloudy in the morning, then becoming partly sunny. A chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 50 percent. |
| Wednesday Night...Partly cloudy. Lows in the upper 60s. |
| Thursday...Mostly sunny. Highs around 80. |
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