Port Jefferson, NY Weather Forecast and Current Conditions
| Day | Sky | High / Low | Precip | Wind | Humidity | |
|---|---|---|---|---|---|---|
|
Tue Jun 23 |
 |
Rain Early Close Hourly |
-º / 63º | 78% | NNW 9 mph | 87% |
| 7pm | |
Rain | 68º | 83% | NW 7 mph | 86% |
| 8pm |  |
Showers | 68º | 35% | NNW 6 mph | 88% |
| 9pm |  |
Cloudy | 67º | 3% | NNW 5 mph | 90% |
| 10pm | |
Cloudy | 67º | 3% | NW 5 mph | 89% |
| 11pm | |
Cloudy | 67º | 3% | NW 5 mph | 90% |
|
Wed Jun 24 |
 |
Sunny View Hourly |
81º / 61º | 19% | NW 12 mph | 52% |
| 12am |  |
Mostly Cloudy | 66º | 3% | NW 5 mph | 90% |
| 1am |  |
Partly Cloudy | 66º | 5% | NNW 6 mph | 90% |
| 2am | |
Partly Cloudy | 65º | 7% | NNW 8 mph | 87% |
| 3am |  |
Clear | 65º | 6% | NNW 8 mph | 86% |
| 4am | |
Partly Cloudy | 65º | 6% | NNW 9 mph | 85% |
| 5am | |
Partly Cloudy | 64º | 6% | NNW 8 mph | 83% |
| 6am |  |
Partly Cloudy | 64º | 6% | NNW 8 mph | 82% |
| 7am | |
Partly Cloudy | 66º | 20% | NW 9 mph | 77% |
| 8am | |
Sunny | 68º | 4% | NW 10 mph | 71% |
| 9am | |
Sunny | 70º | 2% | NW 11 mph | 64% |
| 10am | |
Sunny | 72º | 1% | NW 11 mph | 59% |
| 11am | |
Sunny | 74º | 0% | NW 11 mph | 53% |
| 12pm | |
Sunny | 76º | 0% | NW 12 mph | 48% |
| 1pm | |
Sunny | 77º | 0% | WNW 12 mph | 45% |
| 2pm | |
Sunny | 78º | 0% | WNW 12 mph | 44% |
| 3pm | |
Sunny | 79º | 0% | WNW 11 mph | 42% |
| 4pm | |
Sunny | 80º | 0% | WNW 11 mph | 41% |
| 5pm | |
Sunny | 80º | 0% | WNW 10 mph | 40% |
| 6pm | |
Sunny | 79º | 0% | WNW 9 mph | 43% |
| 7pm | |
Sunny | 78º | 0% | WNW 8 mph | 46% |
| 8pm | |
Sunny | 76º | 0% | W 6 mph | 51% |
| 9pm | |
Clear | 73º | 1% | WNW 5 mph | 58% |
| 10pm |  |
Mostly Clear | 72º | 1% | WNW 5 mph | 61% |
| 11pm | |
Clear | 70º | 3% | WNW 4 mph | 67% |
|
Thu Jun 25 |
|
Partly Cloudy View Hourly |
81º / 66º | 4% | WSW 13 mph | 52% |
| 12am | |
Clear | 68º | 4% | W 4 mph | 72% |
| 1am | |
Clear | 67º | 4% | W 2 mph | 75% |
| 2am | |
Clear | 65º | 4% | WNW 3 mph | 78% |
| 3am | |
Clear | 64º | 5% | NW 2 mph | 81% |
| 4am | |
Mostly Clear | 63º | 5% | NW 2 mph | 83% |
| 5am | |
Mostly Clear | 62º | 6% | NW 1 mph | 84% |
| 6am | |
Partly Cloudy | 63º | 6% | NW 1 mph | 85% |
| 7am | |
Partly Cloudy | 67º | 4% | NNW 1 mph | 76% |
| 8am | |
Partly Cloudy | 70º | 2% | NNW 2 mph | 67% |
| 9am | |
Partly Cloudy | 73º | 1% | NNW 4 mph | 59% |
| 10am | |
Partly Cloudy | 75º | 0% | NNW 4 mph | 52% |
| 11am | |
Partly Cloudy | 77º | 0% | WNW 5 mph | 46% |
| 12pm | |
Partly Cloudy | 78º | 0% | WSW 6 mph | 44% |
| 1pm | |
Partly Cloudy | 79º | 0% | SSW 7 mph | 44% |
| 2pm | |
Partly Cloudy | 80º | 0% | SSW 9 mph | 45% |
| 3pm | |
Sunny | 80º | 0% | SSW 11 mph | 44% |
| 4pm | |
Sunny | 80º | 0% | S 13 mph | 45% |
| 5pm | |
Sunny | 79º | 0% | S 13 mph | 47% |
| 6pm | |
Partly Cloudy | 77º | 1% | SSW 13 mph | 49% |
|
Fri Jun 26 |
|
Cloudy | 81º / 66º | 24% | SW 10 mph | 72% |
|
Sat Jun 27 |
|
Showers | 75º / 64º | 54% | NE 7 mph | 76% |
|
Sun Jun 28 |
 |
Mostly Sunny | 81º / 65º | 6% | NW 7 mph | 64% |
|
Mon Jun 29 |
|
Partly Cloudy | 81º / 66º | 10% | WNW 8 mph | 58% |
|
Tue Jun 30 |
|
Partly Cloudy | 78º / 69º | 16% | SW 12 mph | 62% |
-
Buoy Data
For Port Jefferson, NY -
Wind Forecast
In Port Jefferson, NY -
Radar
In Port Jefferson, NY -
Marine Forecast
In Port Jefferson, NY
Weather Radar for Port Jefferson, NY See Radar
* Playback displays weather for the past 6 hours.
NOAA Weather Marine Forecast for Port Jefferson, NY
Tonight
Low : 67ºF
Variable winds less than 5 kt becoming NNW 5 to 7 kt after midnight. Showers likely, mainly before 8pm. Seas 1 ft or less.
Variable winds less than 5 kt becoming NNW 5 to 7 kt after midnight. Showers likely, mainly before 8pm. Seas 1 ft or less.
Wednesday
High : 80ºF
NW wind 6 to 9 kt becoming W in the afternoon. Sunny. Seas 1 ft or less.
NW wind 6 to 9 kt becoming W in the afternoon. Sunny. Seas 1 ft or less.
Wednesday Night
Low : 64ºF
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Thursday
High : 80ºF
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
Variable winds 5 kt or less. Sunny. Seas 1 ft or less.
Thursday Night
Low : 66ºF
SSW wind around 10 kt. A chance of showers before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then showers likely after 5am. Seas 1 ft or less.
SSW wind around 10 kt. A chance of showers before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then showers likely after 5am. Seas 1 ft or less.
Friday
High : 79ºF
SSW wind 5 to 7 kt. Showers likely, mainly before 8am. Seas 1 ft or less.
SSW wind 5 to 7 kt. Showers likely, mainly before 8am. Seas 1 ft or less.
Friday Night
Low : 66ºF
SSW wind around 6 kt becoming variable and less than 5 kt in the evening. Showers likely, mainly after 2am. Seas 1 ft or less.
SSW wind around 6 kt becoming variable and less than 5 kt in the evening. Showers likely, mainly after 2am. Seas 1 ft or less.
Saturday
High : 75ºF
Variable winds 5 kt or less. Showers likely. Seas 1 ft or less.
Variable winds 5 kt or less. Showers likely. Seas 1 ft or less.
Saturday Night
Low : 66ºF
Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.
Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.
NOAA Buoy Data Near Port Jefferson, NY See Map
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Wind Speed Forecast for Port Jefferson, NY
| Tuesday | Wednesday | Thursday | ||||||||||
| Wind Speed (MPH) | 7 | 5 | 8 | 9 | 11 | 11 | 8 | 4 | 2 | 1 | 5 | 11 |
| 11pm | 3am | 7am | 11am | 3pm | 7pm | 11pm | 3am | 7am | 11am | 3pm | 7pm | |
| MPH | 7 | 5 | 8 | 9 | 11 | 11 | 8 | 4 | 2 | 1 | 5 | 11 |
| DIR | NW | NW | NNW | NW | NW | WNW | WNW | WNW | NW | NNW | WNW | SSW |
Current Weather Conditions In Port Jefferson, NY
As Of: 29 minutes ago
- 68ºF
- 68ºF
- 7mph
- 0º (NW)
- 7mph
- Rain
- 4mi
- 29.85"
- 86%
- 0ºF
The weather right now in Port Jefferson, NY is Rain. The current temperature is 68°F, and the expected high and low for today, Tuesday, June 23, 2026, are -° high temperature and 63°F low temperature. The wind is currently blowing at 7 miles per hour, and coming from the Northwest. The wind is gusting to 7 mph. With the wind and the atmosphere the temperature feels like 68° Fahrenheit. Expected precipitation is 83 percent, with current humidity at 86 percent, and air pressure at 29.85 in. Visibility is 4 nautical miles. There are no current weather alert(s).
