Observed 4:30 PM EDT at KISP

Fire Island, NY weather

Sunny and 63°17°, jacket by 8 PM.

Forecasts agree

Now 63°17°

Sunny

Wind: 6 mph9 km/h; From the west. 35–7 mph11 km/h through 4 AM
Dew point: 28°−2°; Dry · up to 42°6° by 5 PM (comfortable)
UV tomorrow: 4Moderate; Moderate 11 AM–4 PM · peak 4
Air quality: 32Good; Ozone · tomorrow moderate
Pressure: 30.5 inHg1033 hPa; Falling slowly · −0.02 inHg−0.8 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

3°2° warmer than this time yesterday (59°15° then, 62°17° now)

Good hours for

Low 48°9° tonight at 5 AM

This afternoonNear 59°15° · Partly cloudy
TonightDown to 48°9° by 5 AM · Clear
Tomorrow morningUp to 55°13° by 11 AM · Clear
Tomorrow afternoonUp to 61°16° by 3 PM · Clear
Tomorrow nightDown to 51°11° by 4 AM · Clear
Monday morningUp to 56°13° by 11 AM · Clear
Monday afternoonUp to 63°17° 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 4p	Partly sunny	58°14° (likely 57°14° to 60°16°)	58°14°	0%	7 mph11 km/h from W, gusts 9 mph14 km/h	53%	46%	1
Sat 5p	Cloudy	59°15° (likely 57°14° to 59°15°)	59°15°	0%	7 mph11 km/h from W, gusts 9 mph14 km/h	53%	73%	0
Sat 6p	Cloudy	57°14° (likely 56°13° to 59°15°)	57°14°	0%	6 mph10 km/h from W, gusts 8 mph13 km/h	55%	64%	0
Sat 7p	Mostly clear	56°13° (likely 54°12° to 59°15°)	56°13°	0%	5 mph8 km/h from W, gusts 6 mph10 km/h	57%	52%	0
Sat 8p	Mostly clear	55°13° (likely 52°11° to 59°15°)	55°13°	0%	3 mph5 km/h from W, gusts 5 mph9 km/h	59%	38%	0
Sat 9p	Mostly clear	54°12° (likely 50°10° to 58°14°)	54°12°	0%	3 mph5 km/h from W, gusts 7 mph11 km/h	64%	47%	0
Sat 10p	Mostly clear	54°12° (likely 49°9° to 58°14°)	54°12°	0%	3 mph5 km/h from W, gusts 7 mph12 km/h	66%	37%	0
Sat 11p	Clear	52°11° (likely 48°9° to 57°14°)	52°11°	0%	3 mph5 km/h from W, gusts 8 mph13 km/h	71%	22%	0
Sun 12a	Clear	51°11° (likely 47°8° to 57°14°)	51°11°	0%	5 mph8 km/h from NW, gusts 9 mph14 km/h	77%	2%	0
Sun 1a	Clear	51°11° (likely 46°8° to 56°13°)	51°11°	0%	5 mph8 km/h from NW, gusts 9 mph14 km/h	77%	0%	0
Sun 2a	Clear	50°10° (likely 46°8° to 56°13°)	48°9°	0%	6 mph10 km/h from NW, gusts 9 mph15 km/h	80%	0%	0
Sun 3a	Clear	49°9° (likely 45°7° to 54°12°)	47°8°	0%	6 mph10 km/h from NW, gusts 9 mph15 km/h	80%	0%	0
Sun 4a	Clear	49°9° (likely 45°7° to 54°12°)	47°8°	0%	6 mph10 km/h from NW, gusts 9 mph15 km/h	80%	0%	0
Sun 5a	Clear	48°9° (likely 45°7° to 53°12°)	45°7°	0%	6 mph10 km/h from NW, gusts 9 mph15 km/h	83%	0%	0
Sun 6a	Clear	48°9° (likely 44°7° to 53°12°)	45°7°	0%	6 mph10 km/h from NW, gusts 8 mph12 km/h	83%	1%	0
Sun 7a	Sunny	48°9° (likely 44°7° to 53°12°)	45°7°	0%	6 mph10 km/h from N, gusts 8 mph12 km/h	83%	1%	0
Sun 8a	Sunny	49°9° (likely 45°7° to 52°11°)	47°8°	0%	6 mph10 km/h from N, gusts 7 mph12 km/h	80%	1%	0
Sun 9a	Sunny	51°11° (likely 49°9° to 53°12°)	51°11°	0%	6 mph10 km/h from N, gusts 7 mph11 km/h	74%	1%	1
Sun 10a	Sunny	53°12° (likely 53°12° to 54°12°)	53°12°	0%	5 mph8 km/h from N, gusts 6 mph10 km/h	69%	0%	2
Sun 11a	Sunny	55°13° (likely 54°12° to 58°14°)	55°13°	0%	5 mph8 km/h from N, gusts 7 mph11 km/h	64%	0%	3
Sun 12p	Sunny	57°14° (likely 56°13° to 61°16°)	57°14°	0%	5 mph8 km/h from NW, gusts 7 mph12 km/h	57%	0%	4
Sun 1p	Sunny	58°14° (likely 57°14° to 63°17°)	58°14°	0%	5 mph8 km/h from W, gusts 7 mph11 km/h	55%	0%	4
Sun 2p	Sunny	60°16° (likely 58°14° to 64°18°)	60°16°	0%	5 mph8 km/h from SW, gusts 8 mph12 km/h	51%	0%	4
Sun 3p	Sunny	61°16° (likely 58°14° to 64°18°)	61°16°	0%	6 mph10 km/h from SW, gusts 10 mph16 km/h	50%	0%	3
Sun 4p	Sunny	61°16° (likely 59°15° to 63°17°)	61°16°	0%	6 mph10 km/h from SW, gusts 9 mph15 km/h	51%	0%	2
Sun 5p	Sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	7 mph11 km/h from SW, gusts 10 mph15 km/h	51%	0%	1
Sun 6p	Clear	59°15° (likely 58°14° to 59°15°)	59°15°	0%	7 mph11 km/h from SW, gusts 10 mph16 km/h	57%	0%	0
Sun 7p	Clear	58°14° (likely 56°13° to 59°15°)	58°14°	0%	6 mph10 km/h from SW, gusts 11 mph17 km/h	60%	0%	0
Sun 8p	Clear	57°14° (likely 54°12° to 59°15°)	57°14°	0%	6 mph10 km/h from SW, gusts 11 mph18 km/h	64%	0%	0
Sun 9p	Clear	56°13° (likely 53°12° to 59°15°)	56°13°	0%	6 mph10 km/h from SW, gusts 11 mph18 km/h	69%	0%	0
Sun 10p	Clear	56°13° (likely 53°12° to 59°15°)	56°13°	0%	7 mph11 km/h from W, gusts 11 mph18 km/h	72%	0%	0
Sun 11p	Clear	56°13° (likely 52°11° to 59°15°)	56°13°	0%	8 mph13 km/h from W, gusts 12 mph19 km/h	72%	0%	0
Mon 12a	Clear	55°13° (likely 51°11° to 59°15°)	55°13°	0%	9 mph14 km/h from W, gusts 13 mph20 km/h	74%	0%	0
Mon 1a	Clear	55°13° (likely 50°10° to 59°15°)	55°13°	0%	9 mph14 km/h from W, gusts 14 mph23 km/h	74%	0%	0
Mon 2a	Clear	54°12° (likely 49°9° to 58°14°)	54°12°	0%	10 mph16 km/h from W, gusts 14 mph22 km/h	77%	0%	0
Mon 3a	Clear	52°11° (likely 49°9° to 57°14°)	52°11°	0%	10 mph16 km/h from W, gusts 13 mph21 km/h	80%	0%	0
Mon 4a	Clear	51°11° (likely 48°9° to 56°13°)	51°11°	0%	10 mph16 km/h from W, gusts 15 mph24 km/h	83%	0%	0
Mon 5a	Clear	51°11° (likely 48°9° to 55°13°)	51°11°	0%	10 mph16 km/h from W, gusts 16 mph25 km/h	83%	0%	0
Mon 6a	Clear	50°10° (likely 47°8° to 54°12°)	46°8°	0%	10 mph16 km/h from W, gusts 16 mph26 km/h	83%	0%	0
Mon 7a	Sunny	50°10° (likely 47°8° to 54°12°)	46°8°	0%	12 mph19 km/h from W, gusts 16 mph25 km/h	80%	14%	0
Mon 8a	Sunny	51°11° (likely 47°8° to 55°13°)	51°11°	0%	12 mph19 km/h from W, gusts 15 mph24 km/h	77%	13%	0
Mon 9a	Sunny	52°11° (likely 49°9° to 55°13°)	52°11°	0%	12 mph19 km/h from W, gusts 15 mph24 km/h	77%	11%	1
Mon 10a	Sunny	54°12° (likely 53°12° to 56°13°)	54°12°	0%	10 mph16 km/h from W, gusts 14 mph23 km/h	74%	9%	2
Mon 11a	Sunny	56°13° (likely 56°13° to 59°15°)	56°13°	0%	10 mph16 km/h from W, gusts 14 mph22 km/h	72%	12%	3
Mon 12p	Sunny	58°14° (likely 58°14° to 61°16°)	58°14°	0%	12 mph19 km/h from W, gusts 13 mph22 km/h	69%	8%	4
Mon 1p	Sunny	60°16° (likely 60°16° to 63°17°)	60°16°	0%	12 mph19 km/h from W, gusts 14 mph22 km/h	69%	1%	4
Mon 2p	Sunny	62°17° (likely 61°16° to 65°18°)	62°17°	0%	13 mph21 km/h from W, gusts 14 mph23 km/h	67%	1%	4
Mon 3p	Sunny	63°17° (likely 63°17° to 67°19°)	63°17°	0%	13 mph21 km/h from W, gusts 12 mph19 km/h	67%	2%	3

Days ahead

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

Today, Oct 24. Cloudy. High 59°15°, low 48°9°. Typical 61°16° / 44°7°. Dry. Forecasts agree.
1. Afternoon
  noon–6 PM
  Cloudy, 59°15°
  Dry
2. Evening
  6 PM–midnight
  Mostly clear, 55°13°
  Dry
3. Overnight
  midnight–6 AM
  Clear, 48°9°
  Dry
Official NWS forecast
Today: Mostly sunny, with a high near 59. West wind around 7 mph.
Tonight: Mostly clear, with a low around 48. West wind around 6 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
58°14°–60°16°
Low, likely
44°7°–50°10°
Typical high / low
61°16° / 44°7°
Wind
13 mph20 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 61°16°, low 50°10°. Typical 61°16° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 51°11°
  Dry
Official NWS forecast
Day: Sunny, with a high near 61. Northwest wind around 7 mph.
Night: Clear, with a low around 50. West wind 6 to 10 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
59°15°–64°18°
Low, likely
44°7°–52°11°
Typical high / low
61°16° / 44°7°
Wind
12 mph19 km/h
UV peak
4
Monday, Oct 26. Sunny. High 64°18°, low 54°12°. Typical 61°16° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 60°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 54°12°
  Dry
Official NWS forecast
Day: Sunny, with a high near 64. West wind around 13 mph.
Night: Mostly clear, with a low around 54.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–67°19°
Low, likely
46°8°–54°12°
Typical high / low
61°16° / 44°7°
Wind
14 mph23 km/h, gusts 21 mph34 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 58°14°, low 49°9°. Typical 60°16° / 43°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 57°14°
  Dry
3. Evening
  6 PM–midnight
  Clear, 51°11°
  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 58.
Night: Mostly clear, with a low around 49.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
58°14°–60°16°
Low, likely
47°8°–54°12°
Typical high / low
60°16° / 43°6°
Wind
17 mph27 km/h, gusts 24 mph39 km/h
UV peak
4
Wednesday, Oct 28. Partly sunny. High 58°14°, low 54°12°. Typical 60°16° / 43°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 57°14°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 58.
Night: Partly cloudy, with a low around 54.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
55°13°–59°15°
Low, likely
43°6°–54°12°
Typical high / low
60°16° / 43°6°
Wind
11 mph18 km/h, gusts 16 mph26 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 63°17°, low 57°14°. Typical 60°16° / 43°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 55°13°
  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 57.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
59°15°–65°18°
Low, likely
50°10°–57°14°
Typical high / low
60°16° / 43°6°
Wind
15 mph24 km/h, gusts 30 mph49 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 65°18°, low 56°13°. Typical 59°15° / 42°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 54°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 65.
Night: Mostly clear, with a low around 56.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
64°18°–71°22°
Low, likely
54°12°–56°13°
Typical high / low
59°15° / 42°6°
Wind
14 mph22 km/h, gusts 25 mph41 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 64°18°, low 54°12°. Typical 59°15° / 42°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 57°14°
  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
59°15°–68°20°
Low, likely
50°10°–57°14°
Typical high / low
59°15° / 42°6°
Wind
11 mph18 km/h, gusts 24 mph38 km/h
UV peak
4
Sunday, Nov 1. Drizzle. High 64°18°, low 57°14°. Typical 58°14° / 42°6°. Rain 0.02 in0.5 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 59°15°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 65°19°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 61°16°
  30% chance · 0.03 in0.6 mm
4. Overnight
  midnight–6 AM
  Drizzle, 62°16°
  30% chance · 0.07 in1.9 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
59°15°–70°21°
Low, likely
56°13°–58°14°
Typical high / low
58°14° / 42°6°
Wind
12 mph20 km/h, gusts 23 mph37 km/h
UV peak
2
Monday, Nov 2. Drizzle. High 65°18°, low 61°16°. Typical 58°14° / 42°6°. Rain 0.73 in19 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Showers, 63°17°
  30% chance · 0.22 in5.6 mm
2. Afternoon
  noon–6 PM
  Showers, 66°19°
  20% chance · 0.3 in7.7 mm
3. Evening
  6 PM–midnight
  Showers, 65°18°
  20% chance · 0.34 in8.5 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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–69°21°
Low, likely
58°14°–65°18°
Typical high / low
58°14° / 42°6°
Wind
22 mph35 km/h, gusts 40 mph65 km/h

10 days15 days30 days

The outlook

Today
Dry, high 59°, low 48°.
Tomorrow
Dry, high 61°, low 50°.
Monday
Dry, high 64°, low 54°, warming up.
Rest of week
Mostly dry, highs 58–65°.

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

Carlls River at Babylon

8.2 mi

Level: 0.5 ft
Flow: 15 cfs

Reading from Sat 3 PM · NWS gauge page

Great South Bay at Lindenhurst (IN MLLW)

8.3 mi

Below flood stage

Level: 1.6 ft

Reading from Sat 3 PM · NWS gauge page

Great South Bay at Watch Hill (IN MLLW)

12 mi

Below flood stage

Level: 1.5 ft

Reading from Sat 3 PM · NWS gauge page

Hudson Bay at Freeport (IN MLLW)

20 mi

Below flood stage

Level: 1.9 ft

Reading from Sat 2:30 PM · NWS gauge page

For your home

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

Heating this week

About 78% less heating than a typical week.

This week 21Typical 93

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 28°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

Fire Island weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 46 min; Losing 2 min 35 s a day; shortest Dec 21, 1 h 30 min less
Golden hour: 5:21–6:16 PM; Morning 6:56–7:51 AM
Blue hour: 6:16–6:27 PM; Morning 6:45–6:56 AM; first light 6:45 AM

Stars tonight? Fair

Mostly clear 11 PM–6:47 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:24 AM · rises 4:56 PM
Full moon: Oct 26
New moon: Nov 9

Looking south from Fire Island. Open water to the horizon.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Fire Island, NY weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Carlls River at Babylon

Great South Bay at Lindenhurst (IN MLLW)

Great South Bay at Watch Hill (IN MLLW)

Hudson Bay at Freeport (IN MLLW)

For your home

Heating this week

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