Observed 5:40 PM EDT at KHWV

Sound Beach, NY weather

Sunny and 55°13°, jacket by 7 PM.

Forecasts agree

Now 55°13°

Sunny

Wind: Calm; Light through 5 AM
Dew point: 34°1°; Dry, static shocks likely
UV tomorrow: 4Moderate; Moderate 11 AM–4 PM · peak 4
Air today: 50Good; EPA forecast · PM2.5 (fine particles)
Pressure: 30.51 inHg1033 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Low 44°7° tonight at 5 AM
Above 50°10° tomorrow by 10 AM

TonightDown to 44°7° by 5 AM · Clear
Tomorrow morningUp to 54°12° by 11 AM · Clear
Tomorrow afternoonUp to 62°17° by 4 PM · Clear
Tomorrow nightDown to 49°9° by 4 AM · Clear
Monday morningUp to 56°13° by 11 AM · Clear
Monday afternoonUp to 64°18° by 3 PM · 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 5p	Sunny	59°15° (likely 57°14° to 59°15°)	59°15°	0%	3 mph5 km/h from W, gusts 8 mph13 km/h	44%	39%	0
Sat 6p	Clear	58°14° (likely 53°12° to 58°14°)	58°14°	0%	3 mph5 km/h from W, gusts 8 mph13 km/h	45%	26%	0
Sat 7p	Mostly clear	55°13° (likely 50°10° to 56°13°)	55°13°	0%	2 mph3 km/h from W, gusts 8 mph12 km/h	51%	19%	0
Sat 8p	Clear	53°12° (likely 48°9° to 55°13°)	53°12°	0%	2 mph3 km/h from W, gusts 7 mph11 km/h	54%	6%	0
Sat 9p	Clear	51°11° (likely 47°8° to 54°12°)	51°11°	0%	2 mph3 km/h from W, gusts 6 mph10 km/h	61%	3%	0
Sat 10p	Clear	50°10° (likely 46°8° to 53°12°)	50°10°	0%	2 mph3 km/h from NW, gusts 5 mph8 km/h	63%	0%	0
Sat 11p	Clear	49°9° (likely 45°7° to 52°11°)	49°9°	0%	2 mph3 km/h from NW, gusts 6 mph10 km/h	66%	0%	0
Sun 12a	Clear	49°9° (likely 44°7° to 51°11°)	49°9°	0%	2 mph3 km/h from NW, gusts 7 mph10 km/h	66%	0%	0
Sun 1a	Clear	47°8° (likely 44°7° to 50°10°)	46°8°	0%	3 mph5 km/h from NW, gusts 7 mph12 km/h	71%	0%	0
Sun 2a	Clear	47°8° (likely 44°7° to 50°10°)	46°8°	0%	3 mph5 km/h from NW, gusts 7 mph12 km/h	71%	0%	0
Sun 3a	Clear	46°8° (likely 45°7° to 49°9°)	45°7°	0%	3 mph5 km/h from NW, gusts 7 mph11 km/h	73%	1%	0
Sun 4a	Clear	45°7° (likely 45°7° to 50°10°)	44°7°	0%	3 mph5 km/h from NW, gusts 7 mph11 km/h	76%	0%	0
Sun 5a	Clear	44°7° (likely 44°7° to 49°9°)	42°6°	0%	3 mph5 km/h from NW, gusts 7 mph12 km/h	79%	0%	0
Sun 6a	Clear	44°7° (likely 44°7° to 48°9°)	42°6°	0%	3 mph5 km/h from N, gusts 7 mph11 km/h	82%	0%	0
Sun 7a	Sunny	45°7° (likely 44°7° to 48°9°)	44°7°	0%	3 mph5 km/h from N, gusts 6 mph10 km/h	79%	0%	0
Sun 8a	Sunny	46°8° (likely 44°7° to 48°9°)	45°7°	0%	3 mph5 km/h from N, gusts 6 mph9 km/h	76%	0%	0
Sun 9a	Sunny	49°9° (likely 48°9° to 51°11°)	48°9°	0%	3 mph5 km/h from N, gusts 5 mph8 km/h	68%	0%	1
Sun 10a	Sunny	52°11° (likely 52°11° to 56°13°)	52°11°	0%	3 mph5 km/h from N, gusts 6 mph10 km/h	61%	0%	2
Sun 11a	Sunny	54°12° (likely 54°12° to 58°14°)	54°12°	0%	3 mph5 km/h from N, gusts 6 mph9 km/h	59%	0%	3
Sun 12p	Sunny	55°13° (likely 55°13° to 60°16°)	55°13°	0%	3 mph5 km/h from N, gusts 8 mph12 km/h	55%	0%	4
Sun 1p	Sunny	58°14° (likely 58°14° to 62°17°)	58°14°	0%	3 mph5 km/h from NW, gusts 7 mph11 km/h	49%	0%	4
Sun 2p	Sunny	60°16° (likely 59°15° to 63°17°)	60°16°	0%	3 mph5 km/h from NW, gusts 7 mph12 km/h	46%	0%	4
Sun 3p	Sunny	61°16° (likely 59°15° to 64°18°)	61°16°	0%	3 mph5 km/h from W, gusts 6 mph10 km/h	44%	0%	3
Sun 4p	Sunny	62°17° (likely 59°15° to 64°18°)	62°17°	0%	2 mph3 km/h from W, gusts 6 mph10 km/h	43%	0%	2
Sun 5p	Sunny	61°16° (likely 59°15° to 62°17°)	61°16°	0%	2 mph3 km/h from W, gusts 5 mph8 km/h	44%	0%	1
Sun 6p	Clear	59°15° (likely 55°13° to 59°15°)	59°15°	0%	3 mph5 km/h from SW, gusts 7 mph12 km/h	49%	0%	0
Sun 7p	Clear	57°14° (likely 51°11° to 57°14°)	57°14°	0%	3 mph5 km/h from SW, gusts 9 mph15 km/h	57%	0%	0
Sun 8p	Clear	52°11° (likely 50°10° to 56°13°)	52°11°	0%	5 mph8 km/h from SW, gusts 11 mph17 km/h	71%	0%	0
Sun 9p	Clear	52°11° (likely 49°9° to 56°13°)	52°11°	0%	5 mph8 km/h from SW, gusts 11 mph18 km/h	71%	0%	0
Sun 10p	Clear	52°11° (likely 48°9° to 56°13°)	52°11°	0%	5 mph8 km/h from SW, gusts 12 mph19 km/h	74%	0%	0
Sun 11p	Clear	52°11° (likely 48°9° to 55°13°)	52°11°	0%	5 mph8 km/h from SW, gusts 12 mph19 km/h	74%	0%	0
Mon 12a	Clear	51°11° (likely 47°8° to 55°13°)	51°11°	0%	5 mph8 km/h from SW, gusts 12 mph19 km/h	77%	0%	0
Mon 1a	Clear	51°11° (likely 46°8° to 54°12°)	51°11°	0%	6 mph10 km/h from W, gusts 12 mph19 km/h	77%	0%	0
Mon 2a	Clear	51°11° (likely 46°8° to 53°12°)	51°11°	0%	6 mph10 km/h from W, gusts 12 mph19 km/h	77%	0%	0
Mon 3a	Clear	50°10° (likely 46°8° to 52°11°)	48°9°	0%	6 mph10 km/h from W, gusts 12 mph20 km/h	80%	0%	0
Mon 4a	Clear	49°9° (likely 46°8° to 51°11°)	46°8°	0%	7 mph11 km/h from W, gusts 14 mph22 km/h	83%	0%	0
Mon 5a	Clear	49°9° (likely 46°8° to 50°10°)	46°8°	0%	7 mph11 km/h from W, gusts 14 mph23 km/h	83%	0%	0
Mon 6a	Clear	48°9° (likely 46°8° to 50°10°)	45°7°	0%	7 mph11 km/h from W, gusts 14 mph22 km/h	86%	0%	0
Mon 7a	Sunny	48°9° (likely 46°8° to 49°9°)	45°7°	0%	7 mph11 km/h from W, gusts 13 mph21 km/h	83%	3%	0
Mon 8a	Sunny	49°9° (likely 46°8° to 49°9°)	46°8°	0%	7 mph11 km/h from W, gusts 13 mph20 km/h	80%	0%	0
Mon 9a	Sunny	52°11° (likely 50°10° to 54°12°)	52°11°	0%	7 mph11 km/h from W, gusts 13 mph21 km/h	74%	1%	1
Mon 10a	Sunny	54°12° (likely 54°12° to 58°14°)	54°12°	0%	7 mph11 km/h from W, gusts 13 mph21 km/h	71%	10%	2
Mon 11a	Sunny	56°13° (likely 56°13° to 60°16°)	56°13°	0%	7 mph11 km/h from W, gusts 12 mph19 km/h	69%	7%	3
Mon 12p	Sunny	59°15° (likely 57°14° to 62°17°)	59°15°	0%	7 mph11 km/h from W, gusts 11 mph18 km/h	64%	6%	4
Mon 1p	Sunny	61°16° (likely 59°15° to 64°18°)	61°16°	0%	8 mph13 km/h from W, gusts 11 mph17 km/h	60%	12%	4
Mon 2p	Sunny	63°17° (likely 61°16° to 65°18°)	63°17°	0%	8 mph13 km/h from W, gusts 11 mph18 km/h	56%	0%	4
Mon 3p	Sunny	64°18° (likely 61°16° to 65°18°)	64°18°	0%	8 mph13 km/h from W, gusts 11 mph17 km/h	56%	2%	3
Mon 4p	Sunny	64°18° (likely 61°16° to 64°18°)	64°18°	0%	8 mph13 km/h from W, gusts 12 mph19 km/h	56%	3%	2

Days ahead

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

Today, Oct 24. Cloudy. High 59°15°, low 44°7°. Typical 61°16° / 44°7°. Dry. Forecasts agree.
1. Evening
  6 PM–midnight
  Clear, 53°12°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 44°7°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 59. West wind around 3 mph.
Tonight: Mostly clear, with a low around 44. Northwest wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
58°14°–60°16°
Low, likely
39°4°–44°7°
Typical high / low
61°16° / 44°7°
Wind
11 mph17 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 62°17°, low 48°9°. Typical 61°16° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°9°
  Dry
Official NWS forecast
Day: Sunny, with a high near 62. Northwest wind around 3 mph.
Night: Clear, with a low around 48. Southwest wind 3 to 7 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–64°18°
Low, likely
43°6°–48°9°
Typical high / low
61°16° / 44°7°
Wind
9 mph15 km/h, gusts 17 mph27 km/h
UV peak
4
Monday, Oct 26. Sunny. High 64°18°, low 51°11°. Typical 61°16° / 44°7°. 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, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 53°12°
  Dry
Official NWS forecast
Day: Sunny, with a high near 64. West wind around 8 mph.
Night: Clear. Low around 51, with temperatures rising to around 53 overnight.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–65°18°
Low, likely
45°7°–51°11°
Typical high / low
61°16° / 44°7°
Wind
11 mph17 km/h, gusts 20 mph33 km/h
UV peak
4
Tuesday, Oct 27. Sunny. High 58°14°, low 46°8°. Typical 60°16° / 43°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Clear, 48°9°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 44°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 58.
Night: Mostly clear, with a low around 46.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
57°14°–59°15°
Low, likely
42°6°–50°10°
Typical high / low
60°16° / 43°6°
Wind
14 mph23 km/h, gusts 28 mph44 km/h
UV peak
4
Wednesday, Oct 28. Mostly sunny. High 56°13°, low 49°9°. Typical 60°16° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 57°14°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 56.
Night: Partly cloudy, with a low around 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
55°13°–59°15°
Low, likely
40°4°–49°9°
Typical high / low
60°16° / 43°6°
Wind
11 mph18 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 63°17°, low 55°13°. Typical 60°16° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 54°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 63.
Night: Mostly clear, with a low around 55.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–64°18°
Low, likely
44°7°–55°13°
Typical high / low
60°16° / 43°6°
Wind
15 mph24 km/h, gusts 22 mph36 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 66°19°, low 54°12°. Typical 59°15° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 66.
Night: Mostly clear, with a low around 54.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–69°21°
Low, likely
49°9°–56°13°
Typical high / low
59°15° / 42°6°
Wind
13 mph20 km/h, gusts 26 mph42 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 61°16°, low 51°11°. Typical 59°15° / 42°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 54°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°–66°19°
Low, likely
50°10°–54°12°
Typical high / low
59°15° / 42°6°
Wind
11 mph18 km/h, gusts 25 mph41 km/h
UV peak
4
Sunday, Nov 1. Drizzle. High 62°17°, low 54°12°. Typical 58°14° / 42°6°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 56°14°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 59°15°
  30% chance · 0.02 in0.4 mm
4. Overnight
  midnight–6 AM
  Drizzle, 60°16°
  40% chance · 0.08 in2.1 mm
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
58°14°–68°20°
Low, likely
49°9°–58°14°
Typical high / low
58°14° / 42°6°
Wind
12 mph20 km/h, gusts 25 mph40 km/h
UV peak
2
Monday, Nov 2. Drizzle. High 65°18°, low 59°15°. Typical 58°14° / 42°6°. Rain 0.51 in13 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Showers, 62°17°
  40% chance · 0.18 in4.6 mm
2. Afternoon
  noon–6 PM
  Showers, 65°18°
  30% chance · 0.17 in4.3 mm
3. Evening
  6 PM–midnight
  Showers, 64°18°
  20% chance · 0.22 in5.5 mm
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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–69°21°
Low, likely
56°13°–64°18°
Typical high / low
58°14° / 42°6°
Wind
24 mph38 km/h, gusts 36 mph58 km/h

10 days15 days30 days

The outlook

Today
Dry, high 59°, low 44°.
Tomorrow
Dry, high 62°, low 48°, warming up.
Monday
Dry, high 64°, low 51°.
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

Long Island Sound near Bridgeport Harbor (IN MLLW)

18 mi

Below flood stage

Level: 0.7 ft

Forecast peak 9.1 ft Tue 12 PM, minor flooding

Reading from Sat 5:06 PM · NWS gauge page

Flax Pond at Old Field (IN MLLW)

9.0 mi

Below flood stage

Level: 4.3 ft

Reading from Sat 4:24 PM · NWS gauge page

Moriches Bay at Moriches Bay (IN MLLW)

17 mi

Below flood stage

Level: 2.1 ft

Reading from Sat 4:48 PM · NWS gauge page

Peconic River at Riverhead (IN MLLW)

18 mi

Below flood stage

Level: 1.3 ft

Reading from Sat 4:54 PM · NWS gauge page

For your home

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

Heating this week

About 74% less heating than a typical week.

This week 24Typical 93

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 8
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 34°F).

Open the windows?

Sun, 2:00 PM–5:00 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 2°1° colder than typical.

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

Sound Beach weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 45 min; Losing 2 min 35 s a day; shortest Dec 21, 1 h 31 min less
Golden hour: 5:19–6:15 PM; Morning 6:56–7:51 AM
Blue hour: 6:15–6:26 PM; Morning 6:45–6:56 AM; first light 6:45 AM

Stars tonight? Fair

Clear 7 PM–6:46 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:23 AM · rises 4:54 PM
Full moon: Oct 26
New moon: Nov 9

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

Sound Beach, NY weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Long Island Sound near Bridgeport Harbor (IN MLLW)

Flax Pond at Old Field (IN MLLW)

Moriches Bay at Moriches Bay (IN MLLW)

Peconic River at Riverhead (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