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      Elev 115 ft, 40.944 °N 73.059 °W

      Port Jefferson, NY

      Port Jefferson Station62°
      Sun, Oct 4, 2026
      Tomorrow
      Sun 10/04
      High 63°f57°f
      49% Precip. / 0.14 in
      Cloudy in the morning, then off and on rain showers during the afternoon hours. High 63F. Winds E at 10 to 15 mph. Chance of rain 50%.
      Tomorrow night
      Sun 10/04
      Low 57°f
      46% Precip. / 0.08 in
      Rain showers early with overcast skies late. Low 57F. Winds NNE at 5 to 10 mph. Chance of rain 50%.
      Sunrise 6:52 AM
      Sunset 6:29 PM
      Moonrise -
      Moonset 3:27 PM
      Waning Crescent, 43% visible
      Hourly Forecast
      12AM
      58°
      1AM
      57°
      2AM
      57°
      3AM
      57°
      4AM
      56°
      5AM
      56°
      6AM
      56°
      6:51AM
      Sunrise
      7AM
      56°
      8AM
      58°
      9AM
      59°
      10AM
      61°
      11AM
      62°
      12PM
      63°
      1PM
      63°
      2PM
      63°
      3PM
      47%
      63°
      4PM
      40%
      63°
      5PM
      50%
      62°
      6PM
      45%
      61°
      6:28PM
      Sunset
      7PM
      47%
      60°
      8PM
      41%
      60°
      9PM
      37%
      60°
      10PM
      42%
      59°
      11PM
      37%
      59°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Clear
      		 58°F 57°F 5% 0in 7% 52°F 82% 7 mph E 30.29in
      1:00 am
      Clear
      		 57°F 56°F 5% 0in 7% 52°F 83% 6 mph E 30.29in
      2:00 am
      Clear
      		 57°F 55°F 4% 0in 8% 51°F 82% 7 mph ENE 30.28in
      3:00 am
      Clear
      		 57°F 55°F 5% 0in 6% 52°F 84% 8 mph ENE 30.28in
      4:00 am
      Clear
      		 56°F 54°F 5% 0in 9% 52°F 85% 9 mph ENE 30.27in
      5:00 am
      Clear
      		 56°F 54°F 6% 0in 13% 52°F 85% 9 mph ENE 30.27in
      6:00 am
      Partly Cloudy
      		 56°F 54°F 6% 0in 36% 52°F 86% 10 mph ENE 30.27in
      7:00 am
      Partly Cloudy
      		 56°F 54°F 6% 0in 57% 51°F 83% 10 mph ENE 30.27in
      8:00 am
      Mostly Cloudy
      		 58°F 55°F 5% 0in 73% 51°F 79% 11 mph ENE 30.27in
      9:00 am
      Mostly Cloudy
      		 59°F 57°F 4% 0in 79% 51°F 74% 12 mph ENE 30.26in
      10:00 am
      Cloudy
      		 61°F 59°F 3% 0in 89% 51°F 71% 12 mph ENE 30.25in
      11:00 am
      Cloudy
      		 62°F 60°F 7% 0in 94% 51°F 67% 11 mph E 30.24in
      12:00 pm
      Cloudy
      		 63°F 61°F 16% 0in 88% 50°F 64% 11 mph E 30.22in
      1:00 pm
      Cloudy
      		 63°F 61°F 7% 0in 86% 50°F 64% 10 mph E 30.2in
      2:00 pm
      Cloudy
      		 63°F 62°F 7% 0in 90% 51°F 65% 10 mph E 30.17in
      3:00 pm
      Showers
      		 63°F 62°F 47% 0.02in 97% 51°F 65% 9 mph E 30.15in
      4:00 pm
      Showers
      		 63°F 62°F 40% 0.04in 93% 52°F 68% 9 mph E 30.13in
      5:00 pm
      Showers
      		 62°F 61°F 50% 0.05in 98% 53°F 73% 8 mph E 30.11in
      6:00 pm
      Showers
      		 61°F 60°F 45% 0.03in 89% 54°F 78% 8 mph ENE 30.1in
      7:00 pm
      Showers
      		 60°F 59°F 47% 0.03in 100% 55°F 82% 7 mph ENE 30.09in
      8:00 pm
      Showers
      		 60°F 59°F 41% 0.01in 99% 55°F 85% 7 mph ENE 30.08in
      9:00 pm
      Showers
      		 60°F 59°F 37% 0.01in 88% 55°F 86% 7 mph ENE 30.07in
      10:00 pm
      Showers
      		 59°F 59°F 42% 0.01in 87% 55°F 87% 6 mph ENE 30.06in
      11:00 pm
      Showers
      		 59°F 59°F 37% 0.01in 86% 55°F 88% 5 mph ENE 30.04in
      Additional Conditions
      1. Pressure 30.07 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point54°F
      5. Humidity 72%
      6. Rainfall 0.04 in
      7. Snow Depth 0 in
       KISP Station History
      Almanac for October 3, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 69°F 69°F 83°F 2002
      4. Low 56°F 53°F 39°F 1975
      5. Rain/Snow Depth
      6. Precipitation 0 in - in -
      7. Snow 0 in - in -
      Almanac for October 4, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 63°F 68°F 84°F
      4. Low 55°F 53°F 36°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 6:51 AM 6:30 PM
      3. Civil Twilight 6:23 AM 6:58 PM
      4. Nautical Twilight 5:51 AM 7:29PM
      5. Astronomical Twilight 5:19 AM 8:01 PM
      1. Length of Visible Light 12h 34m
      2. Length of Day 11h 39m
      3. Tomorrow will be 2 minutes 41 seconds shorter
      1. Moon 11:47 PM 2:43 PM
      2. Last Quarter43% of the Moon is Illuminated
      Oct 3
      Waning Half Last Qtr
      Oct 10
      New Moon
      Oct 18
      Waxing Half First Qtr
      Oct 26
      Full Moon
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