| NWS Forecast for: Port Jefferson Station NY Issued by: National Weather Service New York, NY Last Update: 3:16 pm EDT Jul 15, 2025 |  |
Tonight: Patchy fog before 3am, then patchy fog after 5am. Otherwise, partly cloudy, with a low around 73. Light south wind. Wednesday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 88. Heat index values as high as 97. Calm wind becoming south around 6 mph in the afternoon. Wednesday Night: A 50 percent chance of showers and thunderstorms. Increasing clouds, with a low around 75. South wind 6 to 8 mph. Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 88. Heat index values as high as 98. Southwest wind 7 to 11 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Thursday Night: Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 76. Southwest wind around 8 mph. Chance of precipitation is 60%. Friday: Sunny, with a high near 89. Friday Night: Mostly clear, with a low around 69. Saturday: Sunny, with a high near 84. Saturday Night: Partly cloudy, with a low around 70. Sunday: A 50 percent chance of showers after 8am. Partly sunny, with a high near 85. Sunday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 71. Monday: Mostly sunny, with a high near 85. Monday Night: Partly cloudy, with a low around 69. Tuesday: Mostly sunny, with a high near 83. | |
| Port Jefferson Station NY 40.93°N 73.06°W (Elev. 161 ft) | |
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