Skip to forecast
Search a place

Observed 8:15 AM EDT at KISP

Nissequogue, NY weather

Sunny and 46°8°.

Today: low 42°6° (likely 41°5° to 44°7°), high 60°16° (likely 58°14° to 60°16°).

Forecasts agree

Now 46°8°

Sunny

Wind
5 mph7 km/h
From the north-northeast. Up to 5 mph8 km/h through 9 PM
Dew point
41°5°
Comfortable
UV index
1Low
Moderate 11 AM–4 PM · peak 4
Air today
50Good
EPA forecast · PM2.5 (fine particles)
Pressure
30.52 inHg1034 hPa
Rising · +0.05 inHg+1.5 hPa in 3 h

Next 2 hours

No precipitation expected in the next 2 hours.

Next 48 hours

Good hours for
  • High 60°16° today at 4 PM
  • Low 44°7° tonight at 4 AM
  • Above 50°10° tomorrow by 10 AM
  1. This morningUp to 55°13° by 11 AM · Mostly cloudy
  2. This afternoonNear 59°15° · Mostly cloudy
  3. TonightDown to 44°7° by 4 AM · Clear
  4. Tomorrow morningUp to 56°13° by 11 AM · Clear
  5. Tomorrow afternoonUp to 63°17° by 4 PM · Clear
  6. Tomorrow nightDown to 47°8° by 4 AM · Clear
  7. Monday morningNear 47°8° · Clear
Hourly forecast, next 48 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Sat 9aMostly cloudy48°9° (likely 47°8° to 49°9°)46°8°0%5 mph8 km/h from NE, gusts 8 mph12 km/h80%57%1
Sat 10aPartly sunny53°12° (likely 51°11° to 53°12°)53°12°0%5 mph8 km/h from N, gusts 9 mph14 km/h66%64%2
Sat 11aCloudy55°13° (likely 52°11° to 55°13°)55°13°0%3 mph5 km/h from N, gusts 7 mph11 km/h61%75%3
Sat 12pCloudy58°14° (likely 54°12° to 58°14°)58°14°0%5 mph8 km/h from N, gusts 5 mph9 km/h53%80%3
Sat 1pCloudy58°14° (likely 55°13° to 58°14°)58°14°0%5 mph8 km/h from NW, gusts 7 mph11 km/h51%80%4
Sat 2pCloudy59°15° (likely 56°13° to 60°16°)59°15°0%5 mph8 km/h from NW, gusts 8 mph13 km/h47%76%3
Sat 3pCloudy59°15° (likely 57°14° to 60°16°)59°15°0%5 mph8 km/h from W, gusts 8 mph14 km/h47%65%3
Sat 4pCloudy60°16° (likely 58°14° to 60°16°)60°16°0%3 mph5 km/h from W, gusts 8 mph14 km/h46%58%2
Sat 5pMostly sunny59°15° (likely 58°14° to 59°15°)59°15°0%3 mph5 km/h from W, gusts 7 mph12 km/h49%35%1
Sat 6pPartly cloudy57°14° (likely 54°12° to 57°14°)57°14°0%2 mph3 km/h from W, gusts 7 mph11 km/h51%37%0
Sat 7pMostly clear54°12° (likely 52°11° to 54°12°)54°12°0%2 mph3 km/h from W, gusts 6 mph9 km/h57%35%0
Sat 8pClear52°11° (likely 51°11° to 53°12°)52°11°0%2 mph3 km/h from W, gusts 5 mph8 km/h61%9%0
Sat 9pClear50°10° (likely 49°9° to 51°11°)50°10°0%1 mph2 km/h from W, gusts 4 mph6 km/h68%3%0
Sat 10pClear50°10° (likely 46°8° to 50°10°)50°10°0%2 mph3 km/h from NW, gusts 5 mph8 km/h68%0%0
Sat 11pClear48°9° (likely 44°7° to 48°9°)48°9°0%2 mph3 km/h from NW, gusts 5 mph8 km/h74%0%0
Sun 12aClear47°8° (likely 44°7° to 47°8°)47°8°0%2 mph3 km/h from NW, gusts 5 mph8 km/h76%0%0
Sun 1aClear47°8° (likely 44°7° to 47°8°)47°8°0%2 mph3 km/h from NW, gusts 5 mph9 km/h76%0%0
Sun 2aClear46°8° (likely 44°7° to 47°8°)46°8°0%2 mph3 km/h from NW, gusts 9 mph14 km/h83%0%0
Sun 3aClear45°7° (likely 44°7° to 46°8°)45°7°0%2 mph3 km/h from NW, gusts 8 mph13 km/h86%0%0
Sun 4aClear44°7° (likely 44°7° to 48°9°)44°7°0%2 mph3 km/h from NW, gusts 7 mph12 km/h89%0%0
Sun 5aClear44°7° (likely 44°7° to 48°9°)44°7°0%3 mph5 km/h from NW, gusts 6 mph10 km/h89%0%0
Sun 6aClear44°7° (likely 43°6° to 47°8°)44°7°0%3 mph5 km/h from NW, gusts 6 mph9 km/h82%0%0
Sun 7aSunny44°7° (likely 43°6° to 47°8°)44°7°0%2 mph3 km/h from N, gusts 5 mph8 km/h82%0%0
Sun 8aSunny46°8° (likely 45°7° to 47°8°)46°8°0%3 mph5 km/h from N, gusts 5 mph8 km/h79%0%0
Sun 9aSunny49°9° (likely 47°8° to 50°10°)49°9°0%3 mph5 km/h from NW, gusts 5 mph7 km/h74%0%1
Sun 10aSunny53°12° (likely 53°12° to 55°13°)53°12°0%3 mph5 km/h from N, gusts 5 mph8 km/h66%0%2
Sun 11aSunny56°13° (likely 56°13° to 59°15°)56°13°0%3 mph5 km/h from N, gusts 5 mph8 km/h59%0%3
Sun 12pSunny58°14° (likely 57°14° to 61°16°)58°14°0%3 mph5 km/h from NW, gusts 6 mph9 km/h53%0%4
Sun 1pSunny61°16° (likely 59°15° to 63°17°)61°16°0%3 mph5 km/h from NW, gusts 5 mph8 km/h48%0%4
Sun 2pSunny61°16° (likely 61°16° to 64°18°)61°16°0%3 mph5 km/h from W, gusts 5 mph7 km/h48%0%4
Sun 3pSunny61°16° (likely 61°16° to 64°18°)61°16°0%3 mph5 km/h from W, gusts 5 mph8 km/h46%0%3
Sun 4pSunny63°17° (likely 62°17° to 63°17°)63°17°0%2 mph3 km/h from W, gusts 5 mph8 km/h43%0%2
Sun 5pSunny61°16° (likely 60°16° to 62°17°)61°16°0%2 mph3 km/h from W, gusts 4 mph7 km/h46%0%1
Sun 6pClear59°15° (likely 55°13° to 59°15°)59°15°0%2 mph3 km/h from SW, gusts 6 mph10 km/h51%0%0
Sun 7pClear57°14° (likely 52°11° to 57°14°)57°14°0%3 mph5 km/h from SW, gusts 9 mph15 km/h55%0%0
Sun 8pClear52°11° (likely 50°10° to 53°12°)52°11°0%3 mph5 km/h from SW, gusts 11 mph17 km/h69%0%0
Sun 9pClear51°11° (likely 48°9° to 51°11°)51°11°0%3 mph5 km/h from SW, gusts 11 mph17 km/h71%0%0
Sun 10pClear50°10° (likely 47°8° to 51°11°)50°10°0%3 mph5 km/h from SW, gusts 11 mph17 km/h77%0%0
Sun 11pClear50°10° (likely 46°8° to 51°11°)50°10°0%3 mph5 km/h from SW, gusts 9 mph15 km/h77%0%0
Mon 12aClear50°10° (likely 46°8° to 50°10°)50°10°0%3 mph5 km/h from W, gusts 9 mph15 km/h77%0%0
Mon 1aClear49°9° (likely 45°7° to 50°10°)47°8°0%5 mph8 km/h from W, gusts 10 mph16 km/h80%0%0
Mon 2aClear49°9° (likely 45°7° to 51°11°)47°8°0%5 mph8 km/h from W, gusts 11 mph17 km/h80%0%0
Mon 3aClear48°9° (likely 45°7° to 55°13°)46°8°0%5 mph8 km/h from W, gusts 8 mph14 km/h80%0%0
Mon 4aClear47°8° (likely 44°7° to 54°12°)44°7°0%6 mph10 km/h from W, gusts 8 mph13 km/h83%0%0
Mon 5aClear47°8° (likely 44°7° to 54°12°)44°7°0%6 mph10 km/h from W, gusts 8 mph12 km/h83%1%0
Mon 6aClear46°8° (likely 45°7° to 54°12°)43°6°0%6 mph10 km/h from W, gusts 9 mph15 km/h86%2%0
Mon 7aSunny46°8° (likely 44°7° to 53°12°)43°6°0%6 mph10 km/h from W, gusts 9 mph14 km/h86%2%0
Mon 8aSunny47°8° (likely 45°7° to 53°12°)44°7°0%6 mph10 km/h from W, gusts 9 mph14 km/h83%12%0

Days ahead

Shaded: typical range for these dates (1991–2020)
  1. Today, Oct 24. Cloudy. High 60°16°, low 42°6°. Typical 61°16° / 44°7°. Dry. Forecasts agree.
    1. Morning

      6 AM–noon

      Partly sunny, 55°13°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 60°16°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 52°11°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 44°7°

      Dry

    Official NWS forecast

    Today: Partly sunny, with a high near 60. Northwest wind around 5 mph.

    Tonight: Mostly clear. Low around 42, with temperatures rising to around 44 overnight. West wind around 3 mph.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    58°14°–60°16°
    Low, likely
    41°5°–44°7°
    Typical high / low
    61°16° / 44°7°
    Wind
    7 mph12 km/h, gusts 12 mph20 km/h
    UV peak
    4
  2. Tomorrow, Oct 25. Sunny. High 63°17°, low 44°7°. Typical 61°16° / 44°7°. Dry. Forecasts agree.
    1. Morning

      6 AM–noon

      Sunny, 46°8°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 63°17°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 52°11°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 47°8°

      Dry

    Official NWS forecast

    Day: Sunny. High near 63, with temperatures falling to around 61 in the afternoon. Northwest wind around 3 mph.

    Night: Clear. Low around 44, with temperatures rising to around 47 overnight. Southwest wind 2 to 6 mph.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    62°17°–64°18°
    Low, likely
    42°6°–45°7°
    Typical high / low
    61°16° / 44°7°
    Wind
    7 mph12 km/h, gusts 15 mph24 km/h
    UV peak
    4
  3. Monday, Oct 26. Sunny. High 66°19°, low 48°9°. Typical 61°16° / 44°7°. Dry. Forecasts agree.
    1. Morning

      6 AM–noon

      Sunny, 47°8°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 65°18°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 59°15°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 54°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 48, with temperatures rising to around 50 overnight.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    65°18°–66°19°
    Low, likely
    44°7°–48°9°
    Typical high / low
    61°16° / 44°7°
    Wind
    9 mph15 km/h, gusts 16 mph26 km/h
    UV peak
    4
  4. Tuesday, Oct 27. Sunny. High 57°14°, low 41°5°. Typical 60°16° / 43°6°. Dry. Forecasts agree.
    1. Morning

      6 AM–noon

      Sunny, 51°11°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 56°13°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 51°10°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 46°8°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Sunny, with a high near 57.

    Night: Mostly clear, with a low around 41.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    57°14°–59°15°
    Low, likely
    41°5°–51°11°
    Typical high / low
    60°16° / 43°6°
    Wind
    14 mph23 km/h, gusts 25 mph41 km/h
    UV peak
    4
  5. Wednesday, Oct 28. Partly sunny. High 56°13°, 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

      Cloudy, 56°13°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 51°11°

      Dry

    4. Overnight

      midnight–6 AM

      Partly cloudy, 49°10°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 56.

    Night: Partly cloudy, with a low around 47.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    54°12°–58°14°
    Low, likely
    41°5°–48°9°
    Typical high / low
    60°16° / 43°6°
    Wind
    9 mph15 km/h, gusts 16 mph26 km/h
    UV peak
    4
  6. Thursday, Oct 29. Partly sunny. High 63°17°, low 52°11°. Typical 60°16° / 43°6°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 50°10°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 63°17°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 58°14°

      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: Partly cloudy, with a low around 52.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    61°16°–64°18°
    Low, likely
    47°8°–52°11°
    Typical high / low
    60°16° / 43°6°
    Wind
    10 mph16 km/h, gusts 30 mph49 km/h
    UV peak
    4
  7. Friday, Oct 30. Mostly sunny. High 65°18°, low 49°9°. Typical 59°15° / 42°6°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 54°12°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 68°20°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 61°16°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 54°12°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 65.

    Night: Mostly clear, with a low around 49.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    65°18°–70°21°
    Low, likely
    49°9°–54°12°
    Typical high / low
    59°15° / 42°6°
    Wind
    15 mph25 km/h, gusts 25 mph41 km/h
    UV peak
    4
  8. Saturday, Oct 31. Cloudy. High 64°18°, low 52°11°. Typical 59°15° / 42°6°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 53°11°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 63°17°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 57°14°

      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°–68°20°
    Low, likely
    49°9°–54°12°
    Typical high / low
    59°15° / 42°6°
    Wind
    19 mph30 km/h
    UV peak
    4
  9. Sunday, Nov 1. Cloudy. High 63°17°, low 54°12°. Typical 58°14° / 42°6°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 55°13°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 62°17°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 58°14°

      Dry

    4. Overnight

      midnight–6 AM

      Partly cloudy, 56°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
    54°12°–67°19°
    Low, likely
    47°8°–58°14°
    Typical high / low
    58°14° / 42°6°
    Wind
    16 mph26 km/h, gusts 23 mph37 km/h
    UV peak
    4
  10. Monday, Nov 2. Drizzle. High 61°16°, low 56°13°. Typical 58°14° / 42°6°. Rain 0.04 in1 mm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Drizzle, 58°14°

      30% chance · 0.01 in0.3 mm

    2. Afternoon

      noon–6 PM

      Cloudy, 63°17°

      20% chance

    3. Evening

      6 PM–midnight

      Cloudy, 58°14°

      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
    54°12°–66°19°
    Low, likely
    48°9°–61°16°
    Typical high / low
    58°14° / 42°6°
    Wind
    15 mph24 km/h
    UV peak
    2

The outlook

  1. Today

    Dry, high 60°, low 42°.

  2. Tomorrow

    Dry, high 63°, low 44°, warming up.

  3. Monday

    Dry, high 66°, low 48°, warming up.

  4. Rest of week

    Mostly dry, highs 56–65°.

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)

19 mi
Below flood stage
Level
5.9 ft

Forecast peak 9.1 ft Tue 12 PM

Reading from Sat 7:36 AM · NWS gauge page

Flax Pond at Old Field (IN MLLW)

4.7 mi
Below flood stage
Level
4.2 ft

Reading from Sat 7:24 AM · NWS gauge page

Carlls River at Babylon

15 mi
Level
0.5 ft
Flow
15 cfs

Reading from Sat 7 AM · NWS gauge page

Great South Bay at Watch Hill (IN MLLW)

18 mi
Below flood stage
Level
2.0 ft

Reading from Sat 7 AM · NWS gauge page

For your home

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

Heating this week

About 73% less heating than a typical week.

This week 25Typical 93

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F
14
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?

Sun, 1:00 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 about typical for the date.

Normal high / low
61°16° / 44°7°
Forecast high / low
60°16° / 42°6°
Record high
74°23° in 1963
Record low
25°−4° in 1969

Last 7 days vs normal

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

  1. −6°−3°SunOct 18
  2. −4°−2°MonOct 19
  3. +3°+1°TueOct 20
  4. +2°+1°WedOct 21
  5. +4°+2°ThuOct 22
  6. −4°−2°FriOct 23
  7. —SatOct 24

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

Sun & moon

Sun

Sunrise 7:14 AM, sunset 5:59 PM.

Daylight
10 h 45 min
Losing 2 min 35 s a day; shortest Dec 21, 1 h 31 min less
Golden hour
5:20–6:16 PM
Morning 6:56–7:52 AM
Blue hour
6:16–6:27 PM
Morning 6:46–6:56 AM; first light 6:46 AM

Stars tonight? Fair

Clear 8 PM–6:47 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

96% lit · growing

Today
sets 5:24 AM · rises 4:55 PM
Full moon
Oct 26
New moon
Nov 9
Looking north from Nissequogue. The highest point on the skyline is about 700 ft, 17 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.