Observed 8:55 AM EDT at KFRG

Greenlawn, NY weather

Sunny and 48°9°.

Forecasts agree

Now 48°9°

Sunny · Feels like 45°7°

Wind: 7 mph11 km/h; From the north-northeast. Up to 7 mph11 km/h through 9 PM
Dew point: 41°5°; Comfortable
UV index: 0Low; Moderate 12–2 PM · peak 3
Air quality: 27Good; PM2.5 (fine particles) · tomorrow moderate
Pressure: 30.54 inHg1034 hPa; Rising · +0.05 inHg+1.5 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

5°3° cooler than this time yesterday (52°11° then, 47°8° now)

Good hours for

High 60°16° today at 3 PM
Low 43°6° tonight at 5 AM
Above 50°10° tomorrow by 10 AM

This morningUp to 56°13° by 11 AM · Mostly cloudy
This afternoonNear 59°15° · Mostly cloudy
TonightDown to 43°6° by 5 AM · Clear
Tomorrow morningUp to 56°13° by 11 AM · Clear
Tomorrow afternoonUp to 63°17° by 4 PM · Clear
Tomorrow nightDown to 45°7° by 3 AM · Clear
Monday morningNear 45°7° · Clear

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 9a	Mostly cloudy	47°8° (likely 46°8° to 49°9°)	47°8°	0%	3 mph5 km/h from N, gusts 8 mph13 km/h	79%	63%	0
Sat 10a	Mostly cloudy	53°12° (likely 49°9° to 53°12°)	53°12°	0%	3 mph5 km/h from N, gusts 8 mph13 km/h	64%	68%	1
Sat 11a	Partly sunny	56°13° (likely 52°11° to 56°13°)	56°13°	0%	3 mph5 km/h from N, gusts 7 mph11 km/h	55%	65%	2
Sat 12p	Cloudy	59°15° (likely 55°13° to 59°15°)	59°15°	0%	5 mph8 km/h from N, gusts 5 mph8 km/h	49%	80%	3
Sat 1p	Cloudy	58°14° (likely 57°14° to 59°15°)	58°14°	0%	5 mph8 km/h from NW, gusts 6 mph9 km/h	49%	78%	3
Sat 2p	Cloudy	59°15° (likely 59°15° to 61°16°)	59°15°	0%	5 mph8 km/h from NW, gusts 6 mph10 km/h	44%	67%	2
Sat 3p	Mostly cloudy	60°16° (likely 59°15° to 61°16°)	60°16°	0%	5 mph8 km/h from NW, gusts 7 mph11 km/h	42%	57%	2
Sat 4p	Mostly cloudy	60°16° (likely 59°15° to 61°16°)	60°16°	0%	5 mph8 km/h from W, gusts 7 mph11 km/h	42%	54%	1
Sat 5p	Partly sunny	59°15° (likely 58°14° to 60°16°)	59°15°	0%	3 mph5 km/h from W, gusts 7 mph11 km/h	45%	57%	0
Sat 6p	Mostly clear	56°13° (likely 55°13° to 57°14°)	56°13°	0%	2 mph3 km/h from W, gusts 6 mph10 km/h	51%	47%	0
Sat 7p	Mostly clear	53°12° (likely 52°11° to 54°12°)	53°12°	0%	2 mph3 km/h from SW, gusts 6 mph9 km/h	57%	20%	0
Sat 8p	Clear	52°11° (likely 50°10° to 52°11°)	52°11°	0%	2 mph3 km/h from W, gusts 4 mph7 km/h	61%	6%	0
Sat 9p	Clear	50°10° (likely 47°8° to 51°11°)	50°10°	0%	2 mph3 km/h from W, gusts 5 mph8 km/h	66%	24%	0
Sat 10p	Clear	48°9° (likely 46°8° to 49°9°)	48°9°	0%	2 mph3 km/h from W, gusts 7 mph11 km/h	71%	4%	0
Sat 11p	Clear	48°9° (likely 46°8° to 48°9°)	48°9°	0%	2 mph3 km/h from W, gusts 6 mph10 km/h	71%	0%	0
Sun 12a	Clear	47°8° (likely 45°7° to 47°8°)	47°8°	0%	2 mph3 km/h from NW, gusts 7 mph11 km/h	74%	0%	0
Sun 1a	Clear	46°8° (likely 44°7° to 47°8°)	46°8°	0%	2 mph3 km/h from NW, gusts 7 mph12 km/h	76%	0%	0
Sun 2a	Clear	46°8° (likely 43°6° to 47°8°)	46°8°	0%	3 mph5 km/h from NW, gusts 9 mph14 km/h	79%	0%	0
Sun 3a	Clear	44°7° (likely 42°6° to 47°8°)	44°7°	0%	3 mph5 km/h from NW, gusts 8 mph13 km/h	82%	0%	0
Sun 4a	Clear	44°7° (likely 41°5° to 48°9°)	44°7°	0%	3 mph5 km/h from NW, gusts 8 mph12 km/h	86%	0%	0
Sun 5a	Clear	43°6° (likely 40°4° to 47°8°)	43°6°	0%	3 mph5 km/h from NW, gusts 6 mph9 km/h	89%	0%	0
Sun 6a	Clear	43°6° (likely 40°4° to 47°8°)	43°6°	0%	3 mph5 km/h from NW, gusts 6 mph9 km/h	82%	0%	0
Sun 7a	Sunny	43°6° (likely 40°4° to 46°8°)	43°6°	0%	3 mph5 km/h from NW, gusts 4 mph7 km/h	82%	0%	0
Sun 8a	Sunny	43°6° (likely 40°4° to 46°8°)	43°6°	0%	3 mph5 km/h from NW, gusts 4 mph7 km/h	86%	0%	0
Sun 9a	Sunny	48°9° (likely 46°8° to 49°9°)	48°9°	0%	3 mph5 km/h from NW, gusts 4 mph7 km/h	74%	0%	1
Sun 10a	Sunny	53°12° (likely 52°11° to 55°13°)	53°12°	0%	3 mph5 km/h from N, gusts 4 mph6 km/h	64%	0%	2
Sun 11a	Sunny	56°13° (likely 56°13° to 59°15°)	56°13°	0%	3 mph5 km/h from N, gusts 5 mph7 km/h	57%	0%	3
Sun 12p	Sunny	58°14° (likely 58°14° to 62°17°)	58°14°	0%	3 mph5 km/h from NW, gusts 5 mph8 km/h	51%	0%	4
Sun 1p	Sunny	61°16° (likely 61°16° to 64°18°)	61°16°	0%	3 mph5 km/h from NW, gusts 4 mph7 km/h	46%	0%	4
Sun 2p	Sunny	62°17° (likely 62°17° to 65°18°)	62°17°	0%	3 mph5 km/h from W, gusts 4 mph7 km/h	43%	0%	4
Sun 3p	Sunny	62°17° (likely 62°17° to 65°18°)	62°17°	0%	3 mph5 km/h from W, gusts 4 mph7 km/h	43%	0%	3
Sun 4p	Sunny	63°17° (likely 63°17° to 65°18°)	63°17°	0%	3 mph5 km/h from W, gusts 4 mph7 km/h	41%	0%	2
Sun 5p	Sunny	62°17° (likely 61°16° to 63°17°)	62°17°	0%	3 mph5 km/h from W, gusts 4 mph7 km/h	43%	0%	1
Sun 6p	Clear	59°15° (likely 56°13° to 59°15°)	59°15°	0%	3 mph5 km/h from SW, gusts 7 mph11 km/h	49%	0%	0
Sun 7p	Clear	56°13° (likely 52°11° to 56°13°)	56°13°	0%	3 mph5 km/h from SW, gusts 9 mph15 km/h	57%	0%	0
Sun 8p	Clear	51°11° (likely 49°9° to 53°12°)	51°11°	0%	3 mph5 km/h from SW, gusts 10 mph17 km/h	71%	0%	0
Sun 9p	Clear	50°10° (likely 48°9° to 50°10°)	50°10°	0%	3 mph5 km/h from SW, gusts 10 mph16 km/h	74%	0%	0
Sun 10p	Clear	49°9° (likely 47°8° to 50°10°)	49°9°	0%	3 mph5 km/h from SW, gusts 10 mph16 km/h	77%	0%	0
Sun 11p	Clear	48°9° (likely 46°8° to 49°9°)	48°9°	0%	3 mph5 km/h from SW, gusts 9 mph14 km/h	80%	0%	0
Mon 12a	Clear	47°8° (likely 46°8° to 49°9°)	47°8°	0%	3 mph5 km/h from W, gusts 10 mph15 km/h	83%	0%	0
Mon 1a	Clear	47°8° (likely 44°7° to 49°9°)	45°7°	0%	5 mph8 km/h from W, gusts 9 mph15 km/h	79%	0%	0
Mon 2a	Clear	46°8° (likely 43°6° to 50°10°)	44°7°	0%	5 mph8 km/h from W, gusts 10 mph16 km/h	83%	0%	0
Mon 3a	Clear	45°7° (likely 41°5° to 54°12°)	43°6°	0%	5 mph8 km/h from W, gusts 9 mph14 km/h	86%	0%	0
Mon 4a	Clear	45°7° (likely 40°4° to 53°12°)	42°6°	0%	6 mph10 km/h from W, gusts 9 mph14 km/h	86%	0%	0
Mon 5a	Clear	45°7° (likely 41°5° to 52°11°)	42°6°	0%	6 mph10 km/h from W, gusts 8 mph13 km/h	86%	2%	0
Mon 6a	Clear	44°7° (likely 41°5° to 52°11°)	41°5°	0%	6 mph10 km/h from W, gusts 10 mph16 km/h	89%	2%	0
Mon 7a	Sunny	43°6° (likely 41°5° to 52°11°)	39°4°	0%	6 mph10 km/h from W, gusts 9 mph15 km/h	93%	1%	0
Mon 8a	Sunny	45°7° (likely 41°5° to 52°11°)	42°6°	0%	6 mph10 km/h from W, gusts 9 mph15 km/h	86%	16%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Cloudy. High 60°16°, low 41°5°. Typical 61°16° / 44°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly cloudy, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Mostly cloudy, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 43°6°
  Dry
Official NWS forecast
Today: Partly sunny, with a high near 60. Northwest wind around 5 mph.
Tonight: Mostly clear. Low around 41, with temperatures rising to around 43 overnight. West wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
59°15°–61°16°
Low, likely
41°5°–43°6°
Typical high / low
61°16° / 44°7°
Wind
7 mph12 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 64°18°, low 43°6°. Typical 61°16° / 44°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 51°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  Dry
Official NWS forecast
Day: Sunny. High near 64, with temperatures falling to around 62 in the afternoon. Northwest wind around 3 mph.
Night: Clear. Low around 43, with temperatures rising to around 45 overnight. Southwest wind around 6 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–65°18°
Low, likely
40°4°–45°7°
Typical high / low
61°16° / 44°7°
Wind
8 mph13 km/h, gusts 15 mph23 km/h
UV peak
4
Monday, Oct 26. Sunny. High 66°19°, low 47°8°. Typical 61°16° / 44°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny. High near 66, with temperatures falling to around 64 in the afternoon. West wind around 7 mph.
Night: Clear. Low around 47, with temperatures rising to around 49 overnight.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
66°19°–68°20°
Low, likely
42°6°–47°8°
Typical high / low
61°16° / 44°7°
Wind
8 mph12 km/h, gusts 21 mph34 km/h
UV peak
4
Tuesday, Oct 27. Sunny. High 56°13°, low 40°4°. Typical 60°16° / 43°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 51°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 57°14°
  Dry
3. Evening
  6 PM–midnight
  Clear, 49°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 56.
Night: Mostly clear, with a low around 40.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
56°13°–59°15°
Low, likely
40°4°–50°10°
Typical high / low
60°16° / 43°6°
Wind
12 mph19 km/h, gusts 25 mph41 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 57°14°, low 47°8°. Typical 60°16° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 58°15°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 51°10°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 57.
Night: Mostly cloudy, with a low around 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
56°13°–60°16°
Low, likely
42°6°–47°8°
Typical high / low
60°16° / 43°6°
Wind
7 mph12 km/h, gusts 15 mph24 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 64°18°, low 51°11°. Typical 60°16° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 64.
Night: Partly cloudy, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–65°18°
Low, likely
46°8°–51°11°
Typical high / low
60°16° / 43°6°
Wind
10 mph16 km/h, gusts 28 mph45 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 66°19°, low 48°9°. Typical 59°15° / 42°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 60°15°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 66.
Night: Mostly clear, with a low around 48.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
66°19°–72°22°
Low, likely
48°9°–53°12°
Typical high / low
59°15° / 42°6°
Wind
12 mph19 km/h, gusts 25 mph40 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 66°19°, low 50°10°. Typical 59°15° / 42°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 53°12°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
57°14°–72°22°
Low, likely
49°9°–53°12°
Typical high / low
59°15° / 42°6°
Wind
14 mph22 km/h, gusts 25 mph40 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 64°18°, low 53°12°. Typical 58°14° / 42°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  20% chance
4. Overnight
  midnight–6 AM
  Cloudy, 55°13°
  30% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
56°13°–68°20°
Low, likely
46°8°–57°14°
Typical high / low
58°14° / 42°6°
Wind
10 mph17 km/h, gusts 23 mph36 km/h
UV peak
4
Monday, Nov 2. Cloudy. High 62°17°, low 55°13°. Typical 58°14° / 42°6°. Rain 0.03 in0.8 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 58°14°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  20% chance
3. Evening
  6 PM–midnight
  Cloudy, 58°14°
  20% chance
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
54°12°–67°19°
Low, likely
48°9°–60°16°
Typical high / low
58°14° / 42°6°
Wind
10 mph17 km/h, gusts 18 mph29 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 60°, low 41°.
Tomorrow
Dry, high 64°, low 43°, warming up.
Monday
Dry, high 66°, low 47°.
Rest of week
Mostly dry, highs 56–66°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (OKX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Little Neck Bay at Kings Point (IN MLLW)

21 mi

Below flood stage

Level: 8.4 ft

Forecast peak 10.2 ft Tue 12 PM

Reading from Sat 8:36 AM · NWS gauge page

Carlls River at Babylon

11 mi

Level: 0.5 ft
Flow: 15 cfs

Reading from Sat 8 AM · NWS gauge page

Long Island Sound above Lattingtown (IN MLLW)

12 mi

Below flood stage

Level: 6.7 ft

Reading from Sat 8:42 AM · NWS gauge page

Great South Bay at Lindenhurst (IN MLLW)

13 mi

Below flood stage

Level: 2.8 ft

Reading from Sat 8 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 71% less heating than a typical week.

This week 27Typical 93

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 18
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at.

Comfort

Dry air outside (dew point 41°F).

Open the windows?

Today, 3:00 PM–4:00 PM

Good stretch to open the windows.

Is this typical?

Islip-Li Macarthur Airport · official normals 1991–2020 · records 1963–2026

Oct 24, today vs a typical year

Today’s expected high is about typical for the date.

Last 7 days vs normal

On average 1° colder than normal (daily mean temperature).

−6°−3°SunOct 18
−4°−2°MonOct 19
+3°+1°TueOct 20
+2°+1°WedOct 21
+4°+2°ThuOct 22
−4°−2°FriOct 23
—SatOct 24

Greenlawn weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 45 min; Losing 2 min 30 s a day; shortest Dec 21, 1 h 31 min less
Golden hour: 5:21–6:17 PM; Morning 6:57–7:53 AM
Blue hour: 6:17–6:27 PM; Morning 6:46–6:57 AM; first light 6:46 AM

Stars tonight? Fair

Clear 7 PM–6:47 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 5:25 AM · rises 4:56 PM
Full moon: Oct 26
New moon: Nov 9

Looking north from Greenlawn. Water in view.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Greenlawn, NY weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Little Neck Bay at Kings Point (IN MLLW)

Carlls River at Babylon

Long Island Sound above Lattingtown (IN MLLW)

Great South Bay at Lindenhurst (IN MLLW)

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Fair

Moon