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Sayville, NY 11782 Weather

It is 55°F in Sayville, NY 11782, observed at 8:40 PM EDT. Tonight: Mostly Clear, low 42°F. Hourly and 10-day forecast from the National Weather Service. Times are local (EDT).

Sayville, NY 11782 current weather

55°F

Mostly Clear

H -- / L 42°Feels like 55°

Observed at Islip, Long Island Mac Arthur Airport (3.6 mi away), 10/30/2026, 8:40 PM EDT

Hourly forecast

NWS, updated 10/30/2026, 11:32 AM PT

  1. Now53°
  2. 10 PM51°
  3. 11 PM49°
  4. 12 AM48°Sat
  5. 1 AM47°
  6. 2 AM46°
  7. 3 AM46°
  8. 4 AM45°
  9. 5 AM44°
  10. 6 AM44°
  11. 7 AM43°
  12. 8 AM44°
  13. 9 AM47°
  14. 10 AM50°
  15. 11 AM52°
  16. 12 PM53°
  17. 1 PM54°
  18. 2 PM55°
  19. 3 PM55°
  20. 4 PM55°
  21. 5 PM55°
  22. 6 PM53°
  23. 7 PM51°
  24. 8 PM49°
  25. 9 PM46°
  26. 10 PM44°
  27. 11 PM42°
  28. 12 AM41°Sun
  29. 1 AM41°
  30. 1 AM41°
  31. 2 AM41°
  32. 3 AM40°
  33. 4 AM38°
  34. 5 AM36°
  35. 6 AM37°
  36. 7 AM40°
  37. 8 AM45°
  38. 9 AM50°
  39. 10 AM54°
  40. 11 AM56°
  41. 12 PM57°
  42. 1 PM58°
  43. 2 PM58°
  44. 3 PM58°
  45. 4 PM58°
  46. 5 PM56°
  47. 6 PM53°
  48. 7 PM50°

10-day forecast

Tap a day for details

  • Today10/30Low 42°High

    Tonight: Mostly clear. Low around 42, with temperatures rising to around 44 overnight. Northwest wind around 14 mph.

    Mostly Clear
  • Sat10/31Low 36°High 56°

    Saturday: Sunny, with a high near 56. Northwest wind 9 to 14 mph.

    Saturday Night: Patchy frost after 4am. Partly cloudy, with a low around 36. North wind 3 to 8 mph.

    Sunny
  • Sun11/1Low 45°High 60°

    Sunday: Patchy frost before 8am. Mostly sunny. High near 60, with temperatures falling to around 56 in the afternoon. Northwest wind 5 to 9 mph.

    Sunday Night: Partly cloudy, with a low around 45. Southwest wind around 6 mph.

    Patchy Frost then Mostly Sunny
  • Mon11/2Low 50°High 64°

    Monday: Mostly sunny. High near 64, with temperatures falling to around 60 in the afternoon.

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

    Mostly Sunny
  • Tue11/3Low 52°High 65°

    Tuesday: Mostly sunny, with a high near 65.

    Tuesday Night: Partly cloudy, with a low around 52.

    Mostly Sunny
  • Wed11/419% chance of precipitationLow 55°High 65°

    Wednesday: Mostly sunny, with a high near 65.

    Wednesday Night: A slight chance of rain showers after 1am. Mostly cloudy, with a low around 55.

    Mostly Sunny
  • Thu11/567% chance of precipitationLow 56°High 66°

    Thursday: A chance of rain showers. Mostly cloudy, with a high near 66. Chance of precipitation is 50%.

    Thursday Night: Rain showers likely. Mostly cloudy, with a low around 56. Chance of precipitation is 70%.

    Chance Rain Showers
  • Fri11/667% chance of precipitationLow High 66°

    Friday: Rain showers likely. Mostly cloudy, with a high near 66.

    Rain Showers Likely
  • Sat11/7Model blend34% chance of precipitationLow 45°High 62°

    Saturday: Chance of rain. High near 62°. Low that night near 45°. About 0.09 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 blend12% chance of precipitationLow 43°High 59°

    Sunday: Partly cloudy. High near 59°. Low that night near 43°. About 0.01 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.

Forecast for 40.745, -73.079 from the NWS OKX office, updated 10/30/2026, 11:32 AM PT · Official forecast on weather.gov

Days 9 to 10: NOAA National Blend of Models, station KISP (Islip/Macarthur Arpt, 4 mi), model run 10/30/2026, 4:00 PM 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. Now53°Mostly Clear0%14 mph
  2. 10 PM51°Mostly Clear0%14 mph
  3. 11 PM49°Mostly Clear0%13 mph
  4. 12 AM48°Partly Cloudy0%13 mph
  5. 1 AM47°Mostly Clear0%13 mph
  6. 2 AM46°Partly Cloudy0%12 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 Sayville, NY 11782 right now?
The latest observation from Islip, Long Island Mac Arthur Airport was 55°F, reported at 10/30/2026, 8:40 PM EDT.
Will it rain in Sayville, NY 11782 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 Sayville, NY 11782?
The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 7 to Nov 8) come from the NOAA National Blend of Models, with highs of 59°F to 62°F and up to a 34% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Sayville, NY 11782 today?
Sunrise is about 7:20 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 Sayville, NY 11782?
At Molloy Cercom, the 1991 to 2020 normal high in October is 63°F and the normal low is 50°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

UV index today (Sayville)
3Moderate
AQI forecast tomorrow (Stratford)
28GoodPM2.5
AQI forecast tomorrow (Stratford)
44GoodPM2.5

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
7:20 AM
Sunset
5:51 PM
Daylight
10 hr 30 min
Moon
Waning Gibbous 75% lit
First light (civil dawn)
6:52 AM
Last light (civil dusk)
6:19 PM
Moonrise
9:26 PM
Moonset
12:34 PM

Normal October weather

Climate

Normal October high 63°, low 50°, precipitation 3.56 in for the month. 1991 to 2020 normals at Molloy Cercom, 2 mi away.

Other places nearby

Data sources

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About this data

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