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Head of the Harbor, NY 11780 Weather

It is 59°F and mostly cloudy in Head of the Harbor, NY 11780, observed at 8:56 AM EDT. Today: Sunny, high 69°F, low 44°F. Hourly and 10-day forecast from the National Weather Service. Times are local (EDT).

Head of the Harbor, NY 11780 current weather

59°F

Mostly Cloudy

H 69° / L 44°Feels like 59°

  • No rain expected in the next 12 hours

Observed at Islip, Long Island Mac Arthur Airport (7.7 mi away), 10/30/2026, 8:56 AM EDT

Hourly forecast

NWS, updated 10/30/2026, 6:16 AM PT

  1. Now63°
  2. 11 AM66°
  3. 12 PM67°
  4. 1 PM68°
  5. 2 PM68°
  6. 3 PM67°
  7. 4 PM65°
  8. 5 PM63°
  9. 6 PM60°
  10. 7 PM57°
  11. 8 PM54°
  12. 9 PM53°
  13. 10 PM51°
  14. 11 PM50°
  15. 12 AM49°Sat
  16. 1 AM48°
  17. 2 AM48°
  18. 3 AM47°
  19. 4 AM47°
  20. 5 AM46°
  21. 6 AM46°
  22. 7 AM46°
  23. 8 AM45°
  24. 9 AM49°
  25. 10 AM51°
  26. 11 AM52°
  27. 12 PM53°
  28. 1 PM55°
  29. 2 PM56°
  30. 3 PM56°
  31. 4 PM57°
  32. 5 PM56°
  33. 6 PM54°
  34. 7 PM50°
  35. 8 PM47°
  36. 9 PM46°
  37. 10 PM45°
  38. 11 PM45°
  39. 12 AM44°Sun
  40. 1 AM44°
  41. 1 AM43°
  42. 2 AM43°
  43. 3 AM43°
  44. 4 AM43°
  45. 5 AM43°
  46. 6 AM43°
  47. 7 AM44°
  48. 8 AM47°

10-day forecast

Tap a day for details

  • Today10/30Low 44°High 69°

    Today: Sunny. High near 69, with temperatures falling to around 63 in the afternoon. Northwest wind 9 to 17 mph.

    Tonight: Mostly clear. Low around 44, with temperatures rising to around 46 overnight. Northwest wind 9 to 17 mph.

    Sunny
  • Sat10/31Low 40°High 58°

    Saturday: Sunny. High near 58, with temperatures falling to around 56 in the afternoon. North wind 8 to 12 mph.

    Saturday Night: Partly cloudy. Low around 40, with temperatures rising to around 43 overnight. North wind 2 to 7 mph.

    Sunny
  • Sun11/1Low 47°High 60°

    Sunday: Mostly sunny. High near 60, with temperatures falling to around 56 in the afternoon. Northwest wind around 5 mph.

    Sunday Night: Partly cloudy. Low around 47, with temperatures rising to around 49 overnight.

    Mostly Sunny
  • Mon11/2Low 50°High 64°

    Monday: Mostly sunny, with a high near 64.

    Monday Night: Partly cloudy, with a low around 50.

    Mostly Sunny
  • Tue11/3Low 51°High 65°

    Tuesday: Mostly sunny, with a high near 65.

    Tuesday Night: Mostly cloudy, with a low around 51.

    Mostly Sunny
  • Wed11/432% chance of precipitationLow 53°High 64°

    Wednesday: Partly sunny, with a high near 64.

    Wednesday Night: A chance of rain showers after 7pm. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.

    Partly Sunny
  • Thu11/552% chance of precipitationLow 53°High 67°

    Thursday: A chance of rain showers. Mostly cloudy, with a high near 67. Chance of precipitation is 50%.

    Thursday Night: A chance of rain showers. Mostly cloudy, with a low around 53.

    Chance Rain Showers
  • Fri11/6Model blend41% chance of precipitationLow 49°High 67°

    Friday: Chance of rain. High near 67°. Low that night near 49°. About 0.54 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sat11/7Model blend24% chance of precipitationLow 44°High 62°

    Saturday: Partly cloudy, slight chance of rain. High near 62°. Low that night near 44°. About 0.46 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sun11/8Model blend10% chance of precipitationLow 43°High 60°

    Sunday: Partly cloudy. High near 60°. Low that night near 43°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 40.892, -73.169 from the NWS OKX office, updated 10/30/2026, 6:16 AM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KISP (Islip/Macarthur Arpt, 8 mi), model run 10/30/2026, 4:00 AM EDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now63°Sunny0%9 mph
  2. 11 AM66°Sunny0%9 mph
  3. 12 PM67°Sunny0%10 mph
  4. 1 PM68°Sunny0%12 mph
  5. 2 PM68°Sunny0%13 mph
  6. 3 PM67°Sunny0%15 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Head of the Harbor, NY 11780 right now?
The latest observation from Islip, Long Island Mac Arthur Airport was 59°F and mostly cloudy, reported at 10/30/2026, 8:56 AM EDT.
What is the high temperature today in Head of the Harbor, NY 11780?
The National Weather Service forecast for today calls for a high near 69°F. Sunny.
Will it rain in Head of the Harbor, NY 11780 in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Head of the Harbor, NY 11780?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 6 to Nov 8) come from the NOAA National Blend of Models, with highs of 60°F to 67°F and up to a 41% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Head of the Harbor, NY 11780 today?
Sunrise is about 7:21 AM EDT and sunset is about 5:51 PM EDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Head of the Harbor, NY 11780?
At Setauket Strong, the 1991 to 2020 normal high in October is 64°F and the normal low is 49°F.

Nearby hazards

New York hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: None reported

UV and air quality forecast

EPA and AirNow

AQI forecast today (Westport)
56ModeratePM2.5

UV index guide · Air quality

Drought

By county

Suffolk County, week of 10/27/2026

23% of the county is abnormally dry. No drought.

Tides nearby

NOAA tide stations

Beaches nearby

EPA BEACON beaches

Sun and moon

Local time, center of the area

Sunrise
7:21 AM
Sunset
5:51 PM
Daylight
10 hr 30 min
Moon
Waning Gibbous 79% lit
First light (civil dawn)
6:52 AM
Last light (civil dusk)
6:19 PM
Moonrise
9:26 PM
Moonset
12:35 PM

Normal October weather

Climate

Normal October high 64°, low 49°. 1991 to 2020 normals at Setauket Strong, 6 mi away.

Other places nearby

Data sources

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About this data

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