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Greenlawn, NY 11740 Weather

It is 45°F and clear in Greenlawn, NY 11740, observed at 8 AM EDT. Today: Mostly Sunny, high 61°F, low 48°F. Hourly and 10-day forecast from the National Weather Service. Times are local (EDT).

Greenlawn, NY 11740 current weather

45°F

Clear

H 61° / L 48°Feels like 42°

  • No rain expected in the next 12 hours

Observed at Farmingdale - Republic Airport (9.6 mi away), 10/28/2026, 8:00 AM EDT

Hourly forecast

NWS, updated 10/28/2026, 2:51 AM PT

  1. Now44°
  2. 9 AM48°
  3. 10 AM51°
  4. 11 AM55°
  5. 12 PM57°
  6. 1 PM59°
  7. 2 PM59°
  8. 3 PM59°
  9. 4 PM60°
  10. 5 PM59°
  11. 6 PM56°
  12. 7 PM54°
  13. 8 PM51°
  14. 9 PM50°
  15. 10 PM50°
  16. 11 PM49°
  17. Thu12 AM49°
  18. 1 AM49°
  19. 2 AM49°
  20. 3 AM48°
  21. 4 AM48°
  22. 5 AM48°
  23. 6 AM48°
  24. 7 AM48°
  25. 8 AM49°
  26. 9 AM54°
  27. 10 AM58°
  28. 11 AM61°
  29. 12 PM64°
  30. 1 PM65°
  31. 2 PM66°
  32. 3 PM66°
  33. 4 PM65°
  34. 5 PM64°
  35. 6 PM62°
  36. 7 PM58°
  37. 8 PM57°
  38. 9 PM57°
  39. 10 PM57°
  40. 11 PM56°
  41. Fri12 AM56°
  42. 1 AM55°
  43. 2 AM55°
  44. 3 AM55°
  45. 4 AM55°
  46. 5 AM55°
  47. 6 AM54°
  48. 7 AM54°

10-day forecast

Tap a day for details

  • Today10/28Low 48°High 61°

    Today: Mostly sunny. High near 61, with temperatures falling to around 59 in the afternoon. Southeast wind around 6 mph.

    Tonight: Partly cloudy, with a low around 48. South wind 2 to 6 mph.

    Mostly Sunny
  • Thu10/29Low 54°High 66°

    Thursday: Sunny. High near 66, with temperatures falling to around 64 in the afternoon. Southwest wind 2 to 9 mph.

    Thursday Night: Mostly clear, with a low around 54. Southwest wind around 9 mph.

    Sunny
  • Fri10/30Low 45°High 69°

    Friday: Sunny. High near 69, with temperatures falling to around 67 in the afternoon. West wind 7 to 13 mph.

    Friday Night: Mostly clear, with a low around 45.

    Sunny
  • Sat10/31Low 45°High 60°

    Saturday: Sunny, with a high near 60.

    Saturday Night: Partly cloudy, with a low around 45.

    Sunny
  • Sun11/1Low 50°High 63°

    Sunday: Mostly sunny, with a high near 63.

    Sunday Night: Mostly cloudy, with a low around 50.

    Mostly Sunny
  • Mon11/229% chance of precipitationLow 50°High 65°

    Monday: A slight chance of rain showers after 7am. Partly sunny, with a high near 65.

    Monday Night: A chance of rain showers. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.

    Slight Chance Rain Showers
  • Tue11/335% chance of precipitationLow 48°High 63°

    Tuesday: A chance of rain showers. Partly sunny, with a high near 63. Chance of precipitation is 30%.

    Tuesday Night: A chance of rain showers. Mostly cloudy, with a low around 48.

    Chance Rain Showers
  • Wed11/4Model blend44% chance of precipitationLow 51°High 62°

    Wednesday: Chance of rain. High near 62°. Low that night near 51°. About 0.99 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.

  • Thu11/5Model blend46% chance of precipitationLow 51°High 63°

    Thursday: Chance of rain. High near 63°. Low that night near 51°. About 0.50 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.

  • Fri11/6Model blend38% chance of precipitationLow High 62°

    Friday: Chance of rain. High near 62°. About 0.39 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 40.866, -73.359 from the NWS OKX office, updated 10/28/2026, 2:51 AM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KFRG (Farmingdale/Republic Arpt, 10 mi), model run 10/27/2026, 7:00 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. Now44°Mostly Sunny2%5 mph
  2. 9 AM48°Mostly Sunny2%5 mph
  3. 10 AM51°Mostly Sunny2%5 mph
  4. 11 AM55°Mostly Sunny2%5 mph
  5. 12 PM57°Mostly Sunny2%5 mph
  6. 1 PM59°Mostly Sunny2%5 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow
40°58°75°0%100%WedThuFriSatSunMonTue60°44°66°48°69°51°59°45°63°45°65°50°63°51°

Line: temperature °F. Bars: chance of precipitation.

  1. WedNow44°Feels 41°2% Sky 31%5
  2.  9 AM48° 2% Sky 35%5
  3.  10 AM51° 2% Sky 40%5
  4.  11 AM55° 2% Sky 44%5
  5.  12 PM57° 2% Sky 45%5
  6.  1 PM59° 2% Sky 46%5
  7.  2 PM59° 2% Sky 47%5
  8.  3 PM59° 2% Sky 55%5
  9.  4 PM60° 2% Sky 63%6
  10.  5 PM59° 2% Sky 71%6
  11.  6 PM56° 2% Sky 70%6
  12.  7 PM54° 2% Sky 70%5
  13.  8 PM51° 1% Sky 70%5
  14.  9 PM50° 1% Sky 59%5
  15.  10 PM50° 1% Sky 49%3
  16.  11 PM49° 1% Sky 38%3
  17. Thu 10/2912 AM49° 1% Sky 31%3
  18.  1 AM49° 1% Sky 23%2
  19.  2 AM49° 0% Sky 16%2
  20.  3 AM48° 0% Sky 16%2
  21.  4 AM48° 0% Sky 17%2
  22.  5 AM48° 1% Sky 17%2
  23.  6 AM48° 1% Sky 17%2
  24.  7 AM48° 1% Sky 17%2
  25.  8 AM49° 0% Sky 16%2
  26.  9 AM54° 0% Sky 18%3
  27.  10 AM58° 0% Sky 19%5
  28.  11 AM61° 0% Sky 21%6
  29.  12 PM64° 0% Sky 17%7
  30.  1 PM65° 0% Sky 13%8g13
  31.  2 PM66° 0% Sky 9%9g14
  32.  3 PM66° 0% Sky 12%9g14
  33.  4 PM65° 0% Sky 14%9g14
  34.  5 PM64° 0% Sky 17%9g14
  35.  6 PM62° 0% Sky 16%9g14
  36.  7 PM58° 0% Sky 15%8g14
  37.  8 PM57° 0% Sky 15%8g14
  38.  9 PM57° 0% Sky 14%8g14
  39.  10 PM57° 0% Sky 13%8g14
  40.  11 PM56° 0% Sky 12%8g14
  41. Fri 10/3012 AM56° 0% Sky 15%8g14
  42.  1 AM55° 0% Sky 18%8g15
  43.  2 AM55° 0% Sky 21%8g15
  44.  3 AM55° 0% Sky 20%8g15
  45.  4 AM55° 0% Sky 18%8g15
  46.  5 AM55° 0% Sky 17%8g15
  47.  6 AM54° 0% Sky 16%8g14
  48.  7 AM54° 0% Sky 15%7g14
  49.  8 AM55° 0% Sky 14%7g13
  50.  9 AM58° 0% Sky 10%7g14
  51.  10 AM62° 0% Sky 5%8g15
  52.  11 AM66° 0% Sky 1%9g17
  53.  12 PM68° 0% Sky 1%10g18
  54.  1 PM69° 0% Sky 1%10g20
  55.  2 PM69° 0% Sky 1%12g21
  56.  3 PM69° 0% Sky 1%13g21
  57.  4 PM69° 0% Sky 1%13g21
  58.  5 PM67° 0% Sky 1%13g21
  59.  6 PM64° 0% Sky 3%13g21
  60.  7 PM60° 0% Sky 4%13g20
  61.  8 PM56° 0% Sky 5%12g20
  62.  9 PM54° 0% Sky 9%10g17
  63.  10 PM52° 0% Sky 13%9g16
  64.  11 PM51° 0% Sky 16%9g15
  65. Sat 10/3112 AM50°Feels 47°0% Sky 17%8g15
  66.  1 AM49°Feels 46°0% Sky 17%8g14
  67.  2 AM48°Feels 44°0% Sky 18%8g14
  68.  3 AM47°Feels 44°0% Sky 17%7g14
  69.  4 AM46°Feels 42°0% Sky 16%7g14
  70.  5 AM46°Feels 42°0% Sky 15%7g15
  71.  6 AM45°Feels 41°0% Sky 13%7g13
  72.  7 AM45°Feels 42°0% Sky 11%6g12
  73.  8 AM46°Feels 43°0% Sky 9%6
  74.  9 AM49°Feels 46°0% Sky 11%7
  75.  10 AM52° 0% Sky 12%7g12
  76.  11 AM55° 0% Sky 14%8
  77.  12 PM57° 0% Sky 16%8
  78.  1 PM58° 0% Sky 19%7
  79.  2 PM59° 0% Sky 21%6
  80.  3 PM59° 0% Sky 23%6
  81.  4 PM59° 0% Sky 24%5
  82.  5 PM58° 0% Sky 26%5
  83.  6 PM56° 0% Sky 30%5
  84.  7 PM53° 0% Sky 33%3
  85.  8 PM52° 0% Sky 38%2
  86.  9 PM50° 0% Sky 38%2
  87.  10 PM48° 0% Sky 38%2
  88.  11 PM47° 0% Sky 38%2
  89. Sun 11/112 AM46° 0% Sky 38%2
  90.  1 AM46° 0% Sky 38%2
  91.  1 AM46° 0% Sky 51%2
  92.  2 AM46° 0% Sky 51%2
  93.  3 AM45° 0% Sky 51%2
  94.  4 AM45° 0% Sky 51%2
  95.  5 AM45° 0% Sky 51%2
  96.  6 AM45° 0% Sky 51%2
  97.  7 AM46° 1% Sky 44%2
  98.  8 AM50° 1% Sky 44%3
  99.  9 AM54° 1% Sky 44%3
  100.  10 AM58° 1% Sky 44%5
  101.  11 AM60° 1% Sky 44%5
  102.  12 PM61° 1% Sky 44%6
  103.  1 PM62° 2% Sky 42%6
  104.  2 PM63° 2% Sky 42%6
  105.  3 PM63° 2% Sky 42%6
  106.  4 PM63° 2% Sky 42%6
  107.  5 PM61° 2% Sky 42%6
  108.  6 PM58° 2% Sky 42%6
  109.  7 PM56° 3% Sky 51%6
  110.  8 PM55° 3% Sky 51%6
  111.  9 PM54° 3% Sky 51%5
  112.  10 PM53° 3% Sky 51%5
  113.  11 PM52° 3% Sky 51%5
  114. Mon 11/212 AM52° 3% Sky 51%3g8
  115.  1 AM51° 9% Sky 69%3g8
  116.  2 AM50° 9% Sky 69%3
  117.  3 AM50° 9% Sky 69%3
  118.  4 AM50° 9% Sky 69%3
  119.  5 AM50° 9% Sky 69%3
  120.  6 AM50° 9% Sky 69%3
  121.  7 AM51° 23% Sky 67%3
  122.  8 AM54° 23% Sky 67%5
  123.  9 AM57° 23% Sky 67%5
  124.  10 AM60° 23% Sky 67%6
  125.  11 AM62° 23% Sky 67%7
  126.  12 PM63° 23% Sky 67%7
  127.  1 PM64° 24% Sky 68%7
  128.  2 PM65° 24% Sky 68%7
  129.  3 PM65° 24% Sky 68%6
  130.  4 PM64° 24% Sky 68%6
  131.  5 PM62° 24% Sky 68%6
  132.  6 PM60° 24% Sky 68%6
  133.  7 PM58° 28% Sky 75%6
  134.  8 PM56° 28% Sky 75%6
  135.  9 PM55° 28% Sky 75%5
  136.  10 PM54° 28% Sky 75%5
  137.  11 PM53° 28% Sky 75%5
  138. Tue 11/312 AM53° 28% Sky 75%5
  139.  1 AM53° 29% Sky 68%5
  140.  2 AM53° 29% Sky 68%5
  141.  3 AM52° 29% Sky 68%5
  142.  4 AM52° 29% Sky 68%6
  143.  5 AM52° 29% Sky 68%7g12
  144.  6 AM51° 29% Sky 68%8g14
  145.  7 AM52° 29% Sky 66%9g15
  146.  8 AM54° 29% Sky 66%10g16
  147.  9 AM57° 29% Sky 66%12g17
  148.  10 AM59° 29% Sky 66%12g17
  149.  11 AM60° 29% Sky 66%12g17
  150.  12 PM61° 29% Sky 66%10g17
  151.  1 PM62° 27% Sky 66%10g17
  152.  2 PM63° 27% Sky 66%10g17
  153.  3 PM63° 27% Sky 66%12g18
  154.  4 PM63° 27% Sky 66%12g18
  155.  5 PM61° 27% Sky 66%12g18
  156.  6 PM58° 27% Sky 66%12g20

Temperature °F · chance of precipitation · amount in inches (T = trace) · sky cover · wind and gusts (g) in mph

NWS hourly forecast updated 10/28/2026, 2:51 AM PT

Radar and satellite

National radar

NEXRAD (last 50 min) and GOES

Latest

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

Drought

By county

Suffolk County, week of 10/20/2026

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
7:19 AM
Sunset
5:54 PM
Daylight
10 hr 35 min
Moon
Waning Gibbous 94% lit
First light (civil dawn)
6:51 AM
Last light (civil dusk)
6:22 PM
Moonrise
7:16 PM
Moonset
10:22 AM

Normal October weather

Climate

Normal October high 63°, low 49°, precipitation 4.26 in for the month. 1991 to 2020 normals at Centerport, 1 mi away.

Other places nearby

Data sources

See something wrong? Request a correction

Frequently asked questions

What is the weather in Greenlawn, NY 11740 right now?
The latest observation from Farmingdale - Republic Airport was 45°F and clear, reported at 10/28/2026, 8:00 AM EDT.
What is the high temperature today in Greenlawn, NY 11740?
The National Weather Service forecast for today calls for a high near 61°F. Mostly Sunny.
Will it rain in Greenlawn, NY 11740 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 Greenlawn, NY 11740?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 4 to Nov 6) come from the NOAA National Blend of Models, with highs of 62°F to 63°F and up to a 46% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Greenlawn, NY 11740 today?
Sunrise is about 7:19 AM EDT and sunset is about 5:54 PM EDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Greenlawn, NY 11740?
At Centerport, the 1991 to 2020 normal high in October is 63°F and the normal low is 49°F.

About this data

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