Weather in Port Jefferson, New York, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Port Jefferson
Today |
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Temperature: 37°F Wind Speed: 12 mph Wind Direction: W Forecast: Mostly sunny, with a high near 37. Wind chill values as low as 24. West wind around 12 mph. |
Tonight |
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Temperature: 35°F Wind Speed: 10 to 14 mph Wind Direction: SW Forecast: A chance of snow after 1am. Mostly cloudy, with a low around 35. 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: 41°F Wind Speed: 10 mph Wind Direction: SW Forecast: A chance of snow before 7am, then rain and snow between 7am and 10am, then rain and snow. Cloudy, with a high near 41. Southwest wind around 10 mph. Chance of precipitation is 80%. New snow accumulation of less than half an inch possible. |
Tuesday Night |
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Temperature: 38°F Wind Speed: 9 to 21 mph Wind Direction: W Forecast: Rain likely before 7pm. Mostly cloudy. Low around 38, with temperatures rising to around 40 overnight. West wind 9 to 21 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible. |
Wednesday |
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Temperature: 41°F Wind Speed: 13 to 21 mph Wind Direction: NW Forecast: Mostly sunny. High near 41, with temperatures falling to around 39 in the afternoon. Northwest wind 13 to 21 mph. |
Wednesday Night |
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Temperature: 32°F Wind Speed: 5 to 12 mph Wind Direction: NW Forecast: Partly cloudy, with a low around 32. |
Christmas Day |
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Temperature: 42°F Wind Speed: 7 to 13 mph Wind Direction: SW Forecast: A slight chance of rain and snow between 7am and 1pm. Mostly cloudy, with a high near 42. |
Thursday Night |
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Temperature: 38°F Wind Speed: 10 mph Wind Direction: N Forecast: A chance of rain after 1am. Cloudy, with a low around 38. Chance of precipitation is 30%. |
Friday |
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Temperature: 48°F Wind Speed: 12 to 16 mph Wind Direction: SE Forecast: Rain. Cloudy, with a high near 48. Chance of precipitation is 80%. |
Friday Night |
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Temperature: 36°F Wind Speed: 18 mph Wind Direction: N Forecast: Rain before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 36. Chance of precipitation is 80%. |
Saturday |
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Temperature: 41°F Wind Speed: 10 to 15 mph Wind Direction: NE Forecast: A slight chance of rain and snow. Mostly cloudy, with a high near 41. |
Saturday Night |
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Temperature: 36°F Wind Speed: 12 mph Wind Direction: SE Forecast: A chance of rain. Mostly cloudy, with a low around 36. Chance of precipitation is 30%. |
Sunday |
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Temperature: 46°F Wind Speed: 12 to 21 mph Wind Direction: SW Forecast: A chance of rain. Cloudy, with a high near 46. Chance of precipitation is 50%. |
Sunday Night |
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Temperature: 27°F Wind Speed: 24 mph Wind Direction: W Forecast: A chance of rain. Mostly cloudy, with a low around 27. |