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      Elev 115 ft, 40.944 °N 73.059 °W

      Port Jefferson, NY

      Mon, Oct 5, 2026
      Monday
      Mon 10/05
      High 69°f
      9% Precip. / 0 in
      Partly cloudy. High 69F. Winds WNW at 15 to 25 mph.
      Monday night
      Mon 10/05
      Low 48°f
      0% Precip. / 0 in
      Clear skies. Low 48F. Winds NW at 10 to 20 mph.
      Sunrise 6:53 AM
      Sunset 6:27 PM
      Moonrise 1:03 AM
      Moonset 4:01 PM
      Waning Crescent, 31% visible
      Hourly Forecast
      12AM
      39%
      59°
      1AM
      35%
      59°
      2AM
      59°
      3AM
      59°
      4AM
      58°
      5AM
      58°
      6AM
      58°
      6:52AM
      Sunrise
      7AM
      58°
      8AM
      59°
      9AM
      61°
      10AM
      63°
      11AM
      64°
      12PM
      66°
      1PM
      67°
      2PM
      68°
      3PM
      68°
      4PM
      67°
      5PM
      66°
      6PM
      64°
      6:27PM
      Sunset
      7PM
      62°
      8PM
      60°
      9PM
      58°
      10PM
      57°
      11PM
      56°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      12:00 am
      Showers
      59°F 59°F 39% 0.01in 89% 56°F 89% 4 mph NE 30.02in
      1:00 am
      Showers
      59°F 59°F 35% 0.01in 90% 56°F 91% 3 mph NNE 30in
      2:00 am
      Cloudy
      59°F 59°F 23% 0in 95% 56°F 92% 3 mph N 29.99in
      3:00 am
      Mostly Cloudy
      59°F 59°F 24% 0in 77% 56°F 92% 3 mph N 29.97in
      4:00 am
      Mostly Cloudy
      58°F 58°F 22% 0in 77% 56°F 93% 3 mph NNW 29.96in
      5:00 am
      Mostly Cloudy
      58°F 58°F 18% 0in 71% 56°F 93% 3 mph NNW 29.95in
      6:00 am
      Partly Cloudy
      58°F 58°F 18% 0in 59% 56°F 92% 3 mph NW 29.94in
      7:00 am
      Partly Cloudy
      58°F 58°F 10% 0in 58% 55°F 90% 4 mph WNW 29.94in
      8:00 am
      Partly Cloudy
      59°F 58°F 7% 0in 55% 56°F 89% 6 mph WNW 29.95in
      9:00 am
      Partly Cloudy
      61°F 60°F 6% 0in 45% 56°F 85% 9 mph W 29.95in
      10:00 am
      Partly Cloudy
      63°F 61°F 5% 0in 39% 56°F 78% 12 mph WNW 29.95in
      11:00 am
      Partly Cloudy
      64°F 63°F 3% 0in 39% 54°F 70% 13 mph WNW 29.94in
      12:00 pm
      Partly Cloudy
      66°F 66°F 2% 0in 36% 52°F 61% 15 mph WNW 29.93in
      1:00 pm
      Partly Cloudy
      67°F 67°F 1% 0in 33% 50°F 54% 17 mph WNW 29.92in
      2:00 pm
      Partly Cloudy
      68°F 68°F 0% 0in 36% 48°F 49% 17 mph NW 29.91in
      3:00 pm
      Sunny
      68°F 68°F 0% 0in 17% 45°F 44% 18 mph NW 29.91in
      4:00 pm
      Sunny
      67°F 67°F 0% 0in 15% 42°F 40% 18 mph NW 29.93in
      5:00 pm
      Sunny
      66°F 66°F 0% 0in 2% 40°F 39% 17 mph NW 29.94in
      6:00 pm
      Sunny
      64°F 62°F 0% 0in 2% 39°F 39% 15 mph NW 29.97in
      7:00 pm
      Clear
      62°F 60°F 0% 0in 1% 38°F 42% 14 mph NW 30in
      8:00 pm
      Clear
      60°F 58°F 0% 0in 1% 38°F 44% 13 mph NW 30.02in
      9:00 pm
      Clear
      58°F 56°F 0% 0in 0% 38°F 47% 12 mph NW 30.04in
      10:00 pm
      Clear
      57°F 54°F 0% 0in 0% 38°F 49% 12 mph NW 30.05in
      11:00 pm
      Clear
      56°F 53°F 0% 0in 0% 37°F 50% 12 mph NW 30.06in
      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
      Nearby Weather Stations
      Station Location
      Temp
      Windchill
      Heat Index
      Dew Point
      Humidity
      Wind
      Precip.
      Elev.
      Updated
      Loading nearby stations…
      Level Access
      Glossary