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: 34°F Wind Speed: 5 to 10 mph Wind Direction: NW Forecast: A slight chance of rain before 8pm, then areas of fog and a chance of rain between 8pm and 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 34. Northwest wind 5 to 10 mph. Chance of precipitation is 20%. |
Saturday |
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Temperature: 41°F Wind Speed: 8 mph Wind Direction: NW Forecast: A slight chance of snow before 7am. Mostly sunny, with a high near 41. Northwest wind around 8 mph. Chance of precipitation is 20%. |
Saturday Night |
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Temperature: 30°F Wind Speed: 5 to 14 mph Wind Direction: E Forecast: A chance of rain between 7pm and 10pm, then a chance of rain and snow. Mostly cloudy. Low around 30, with temperatures rising to around 33 overnight. Wind chill values as low as 24. East wind 5 to 14 mph. Chance of precipitation is 40%. |
Sunday |
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Temperature: 36°F Wind Speed: 16 to 25 mph Wind Direction: NE Forecast: Rain and snow likely. Cloudy, with a high near 36. Wind chill values as low as 18. Northeast wind 16 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of 2 to 4 inches possible. |
Sunday Night |
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Temperature: 28°F Wind Speed: 26 to 35 mph Wind Direction: NE Forecast: Snow likely before 7pm, then snow and areas of blowing snow. Cloudy, with a low around 28. Northeast wind 26 to 35 mph, with gusts as high as 46 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible. |
Monday |
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Temperature: 34°F Wind Speed: 23 to 35 mph Wind Direction: N Forecast: Snow and areas of blowing snow before 1pm, then areas of blowing snow and a chance of snow. Cloudy, with a high near 34. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible. |
Monday Night |
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Temperature: 23°F Wind Speed: 18 to 22 mph Wind Direction: NW Forecast: A chance of snow before 7pm. Mostly cloudy, with a low around 23. Chance of precipitation is 50%. New snow accumulation of less than half an inch possible. |
Tuesday |
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Temperature: 33°F Wind Speed: 14 to 17 mph Wind Direction: NW Forecast: Mostly sunny, with a high near 33. |
Tuesday Night |
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Temperature: 24°F Wind Speed: 8 to 15 mph Wind Direction: W Forecast: A slight chance of snow after 1am. Mostly cloudy, with a low around 24. |
Wednesday |
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Temperature: 38°F Wind Speed: 9 to 14 mph Wind Direction: SW Forecast: A chance of snow before 4pm, then a slight chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 30%. |
Wednesday Night |
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Temperature: 35°F Wind Speed: 14 mph Wind Direction: SW Forecast: A chance of rain and snow. Mostly cloudy, with a low around 35. Chance of precipitation is 50%. |
Thursday |
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Temperature: 42°F Wind Speed: 15 mph Wind Direction: SW Forecast: Rain likely. Mostly cloudy, with a high near 42. Chance of precipitation is 60%. |
Thursday Night |
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Temperature: 32°F Wind Speed: 14 mph Wind Direction: W Forecast: A chance of rain before 1am, then a chance of snow. Mostly cloudy, with a low around 32. Chance of precipitation is 50%. |
Friday |
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Temperature: 38°F Wind Speed: 14 mph Wind Direction: NW Forecast: A chance of snow. Partly sunny, with a high near 38. |