Weather in Port Jefferson, New York, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Port Jefferson
Tonight |
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Temperature: 29°F Wind Speed: 10 to 14 mph Wind Direction: SW Forecast: A chance of snow after 1am. Cloudy, with a low around 29. Wind chill values as low as 20. Southwest wind 10 to 14 mph. Chance of precipitation is 50%. New snow accumulation of less than half an inch possible. |
Tuesday |
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Temperature: 40°F Wind Speed: 9 to 13 mph Wind Direction: SW Forecast: Snow before 10am, then rain and snow between 10am and 11am, then rain and snow between 11am and 4pm. Cloudy, with a high near 40. Wind chill values as low as 20. Southwest wind 9 to 13 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible. |
Tuesday Night |
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Temperature: 36°F Wind Speed: 12 to 22 mph Wind Direction: W Forecast: Mostly cloudy. Low around 36, with temperatures rising to around 40 overnight. West wind 12 to 22 mph. New rainfall amounts less than a tenth of an inch possible. |
Wednesday |
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Temperature: 42°F Wind Speed: 13 to 22 mph Wind Direction: NW Forecast: Mostly sunny. High near 42, with temperatures falling to around 40 in the afternoon. Northwest wind 13 to 22 mph. |
Wednesday Night |
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Temperature: 27°F Wind Speed: 6 to 12 mph Wind Direction: NW Forecast: Partly cloudy. Low around 27, with temperatures rising to around 30 overnight. Northwest wind 6 to 12 mph. |
Christmas Day |
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Temperature: 42°F Wind Speed: 10 to 16 mph Wind Direction: W Forecast: Mostly cloudy. High near 42, with temperatures falling to around 40 in the afternoon. |
Thursday Night |
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Temperature: 29°F Wind Speed: 13 to 17 mph Wind Direction: N Forecast: Mostly cloudy, with a low around 29. |
Friday |
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Temperature: 35°F Wind Speed: 14 mph Wind Direction: NE Forecast: A slight chance of snow between 7am and 1pm, then rain and snow likely. Cloudy, with a high near 35. Chance of precipitation is 60%. |
Friday Night |
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Temperature: 31°F Wind Speed: 13 to 18 mph Wind Direction: E Forecast: Rain and snow. Cloudy, with a low around 31. Chance of precipitation is 80%. |
Saturday |
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Temperature: 36°F Wind Speed: 13 to 17 mph Wind Direction: NE Forecast: Rain and snow likely. Cloudy, with a high near 36. Chance of precipitation is 60%. |
Saturday Night |
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Temperature: 34°F Wind Speed: 12 mph Wind Direction: E Forecast: A chance of rain and snow. Cloudy, with a low around 34. Chance of precipitation is 30%. |
Sunday |
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Temperature: 44°F Wind Speed: 10 to 17 mph Wind Direction: S Forecast: Rain and snow likely. Cloudy, with a high near 44. Chance of precipitation is 70%. |
Sunday Night |
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Temperature: 29°F Wind Speed: 18 to 25 mph Wind Direction: W Forecast: Rain likely before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 70%. |
Monday |
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Temperature: 34°F Wind Speed: 25 mph Wind Direction: W Forecast: A chance of rain and snow before 1pm. Mostly sunny, with a high near 34. |