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      Elev 115 ft, 40.944 °N 73.059 °W

      Port Jefferson, NY

      Sat, Oct 3, 2026
      Tonight
      Fri 10/02
      Low 61°f
      93% Precip. / 0.03 in
      Periods of rain. Low 61F. Winds N at 10 to 15 mph. Chance of rain 90%.
      Tomorrow
      Sat 10/03
      High 69°f
      2% Precip. / 0 in
      Sunny skies. High 69F. Winds NE at 10 to 20 mph.
      Sunrise 6:51 AM
      Sunset 6:30 PM
      Moonrise 11:47 PM
      Moonset 2:43 PM
      Last Quarter, 43% visible
      Hourly Forecast
      Now
      64°
      4AM
      42%
      64°
      5AM
      63°
      6AM
      62°
      6:50AM
      Sunrise
      7AM
      62°
      8AM
      62°
      9AM
      63°
      10AM
      64°
      11AM
      65°
      12PM
      66°
      1PM
      67°
      2PM
      68°
      3PM
      69°
      4PM
      68°
      5PM
      67°
      6PM
      66°
      6:30PM
      Sunset
      7PM
      64°
      8PM
      62°
      9PM
      61°
      10PM
      60°
      11PM
      59°
      12AM
      58°
      1AM
      58°
      2AM
      57°
      3AM
      57°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      4:00 am
      Showers
      64°F 63°F 42% 0in 50% 54°F 72% 11 mph N 30.08in
      5:00 am
      Partly Cloudy
      63°F 62°F 4% 0in 39% 54°F 73% 11 mph N 30.1in
      6:00 am
      Partly Cloudy
      62°F 61°F 2% 0in 34% 54°F 74% 11 mph N 30.13in
      7:00 am
      Partly Cloudy
      62°F 61°F 2% 0in 38% 54°F 76% 12 mph NNE 30.15in
      8:00 am
      Partly Cloudy
      62°F 61°F 2% 0in 35% 54°F 75% 13 mph NNE 30.17in
      9:00 am
      Mostly Sunny
      63°F 62°F 1% 0in 21% 53°F 71% 13 mph NNE 30.19in
      10:00 am
      Sunny
      64°F 63°F 1% 0in 15% 53°F 68% 14 mph NNE 30.21in
      11:00 am
      Sunny
      65°F 64°F 1% 0in 9% 52°F 64% 13 mph NE 30.22in
      12:00 pm
      Sunny
      66°F 66°F 1% 0in 7% 52°F 59% 12 mph NE 30.22in
      1:00 pm
      Sunny
      67°F 67°F 0% 0in 8% 51°F 56% 10 mph NE 30.23in
      2:00 pm
      Sunny
      68°F 68°F 0% 0in 3% 50°F 53% 9 mph NE 30.23in
      3:00 pm
      Sunny
      69°F 69°F 0% 0in 6% 50°F 51% 8 mph NE 30.23in
      4:00 pm
      Sunny
      68°F 68°F 0% 0in 15% 49°F 51% 7 mph NE 30.22in
      5:00 pm
      Sunny
      67°F 67°F 0% 0in 16% 50°F 53% 7 mph ENE 30.23in
      6:00 pm
      Sunny
      66°F 66°F 1% 0in 12% 51°F 58% 6 mph E 30.24in
      7:00 pm
      Clear
      64°F 64°F 2% 0in 15% 52°F 65% 7 mph ESE 30.25in
      8:00 pm
      Clear
      62°F 62°F 2% 0in 14% 52°F 71% 7 mph ESE 30.27in
      9:00 pm
      Clear
      61°F 60°F 4% 0in 8% 53°F 76% 7 mph ESE 30.28in
      10:00 pm
      Clear
      60°F 59°F 5% 0in 8% 54°F 79% 7 mph ESE 30.29in
      11:00 pm
      Clear
      59°F 58°F 5% 0in 7% 54°F 81% 7 mph E 30.29in
      Additional Conditions
      1. Pressure 30.06 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point55°F
      5. Humidity 71%
      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 57°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 56°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