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 Port Jefferson Weather Forecast Summary |
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Today
Jun 6th
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Sunday
Jun 7th
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Monday
Jun 8th
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Tuesday
Jun 9th
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Wednesday
Jun 10th
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Thundershowers |
Mostly Sunny |
Mostly Cloudy with Showers |
Mostly Cloudy |
Mix of Sun and Cloud |
77°F
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81°F
65°F |
81°F
64°F |
73°F
67°F |
84°F
68°F |
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| Port Jefferson Detailed Weather Forecast |
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| Saturday, June 6th, 2026 |
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Evening |
Temperature: 71°F |
| Mostly clear with a few showers. Chance of a thunderstorm. Windy at times. |
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| Sunday, June 7th, 2026 |
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Overnight |
Temperature: 66°F |
| Mostly clear with a chance of showers. |
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Morning |
Temperature: 72°F |
| Mostly sunny with a slight chance of showers. |
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Afternoon |
Temperature: 81°F |
| Sunny with cloudy periods with a slight chance of showers. |
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Evening |
Temperature: 70°F |
| A mix of cloudy and clear skies with a slight chance of showers. Windy at times. |
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| Monday, June 8th, 2026 |
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Overnight |
Temperature: 65°F |
| Mostly cloudy. |
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Morning |
Temperature: 71°F |
| Sunny with cloudy periods. |
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Afternoon |
Temperature: 80°F |
| Sunny with cloudy periods with a chance of showers. Slight chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 70°F |
| Cloudy with showers likely. |
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| Tuesday, June 9th, 2026 |
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Overnight |
Temperature: 67°F |
| Cloudy with a chance of showers. |
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Morning |
Temperature: 69°F |
| Cloudy with a chance of showers. Windy at times. |
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Afternoon |
Temperature: 72°F |
| Mostly cloudy. Slight chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 71°F |
| A mix of clear and cloudy skies with a slight chance of showers or thundershowers. |
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| Wednesday, June 10th, 2026 |
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Overnight |
Temperature: 68°F |
| A mix of cloudy and clear skies. |
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Morning |
Temperature: 70°F |
| A mix of sun and cloud with a slight chance of showers or thundershowers. |
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Afternoon |
Temperature: 83°F |
| Sunny with cloudy periods. Chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 78°F |
| Mostly clear. Chance of a thunderstorm. |
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| Thursday, June 11th, 2026 |
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Overnight |
Temperature: 73°F |
| Clear. Chance of a thunderstorm. |
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Morning |
Temperature: 80°F |
| Mostly sunny with a slight chance of showers or thundershowers. Windy at times. |
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Afternoon |
Temperature: 88°F |
| Sunny with a slight chance of showers or thundershowers. Windy at times. |
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Evening |
Temperature: 78°F |
| Mostly clear with a slight chance of showers or thundershowers. Windy at times. |
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| Friday, June 12th, 2026 |
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Overnight |
Temperature: 72°F |
| Mostly clear with a slight chance of showers or thundershowers. |
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Morning |
Temperature: 75°F |
| A mix of cloud and sun with showers likely. Chance of a thunderstorm. Windy at times. |
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Afternoon |
Temperature: 75°F |
| Mostly cloudy with a chance of showers. Slight chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 71°F |
| A mix of clear and cloudy skies. Chance of a thunderstorm. |
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| Saturday, June 13th, 2026 |
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Overnight |
Temperature: 66°F |
| Mostly clear. |
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Morning |
Temperature: 73°F |
| Mostly sunny. Windy at times. |
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Afternoon |
Temperature: 81°F |
| Sunny with cloudy periods. Windy at times. |
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Evening |
Temperature: 70°F |
| A mix of cloudy and clear skies. Windy at times. |
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| Sunday, June 14th, 2026 |
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Overnight |
Temperature: 62°F |
| Mostly clear. |
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Morning |
Temperature: 69°F |
| Mostly sunny. Windy at times. |
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Afternoon |
Temperature: 79°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 68°F |
| Clear with cloudy periods. Windy at times. |
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