Frost Advisory
Ends in 1 h 52 min
When
Until 9 AM EDT Saturday.
Where
Northeast Suffolk and Southeast Suffolk Counties.
Issued for this forecast zone · National Weather Service Upton NY
What, impacts and precautionsHide details
What
Temperatures in the mid 30s, and locally as low 25 to 30 in parts of the Pine Barrens, will result in frost formation.
Impacts
Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Precautionary actions
Take steps now to protect tender plants from the cold.
Areas: Northeast Suffolk; Southeast Suffolk
See it on weather.gov (opens in a new tab)

Observed 6:40 AM EDT at KGON

Fishers Island, NY weather

Clear and 36°2°.

Mostly agree

Now 36°2°

Clear · Feels like 32°0°

Wind: 5 mph7 km/h; From the north. 35–8 mph13 km/h through 7 PM
Dew point: 28°−2°; Dry · up to 39°4° by 8 AM (comfortable)
UV index: 0Low; Moderate 12–2 PM · peak 3
Air quality: 54Moderate; PM2.5 (fine particles) · tomorrow good
Pressure: 30.51 inHg1033 hPa; Rising slowly · +0.02 inHg+0.8 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

Good hours for

Above 50°10° today by 10 AM
High 59°15° today at noon

This morningUp to 55°13° by 11 AM · Partly cloudy
This afternoonNear 59°15° · Partly cloudy
TonightDown to 41°5° by 5 AM · Clear
Tomorrow morningUp to 54°12° by 11 AM · Clear
Tomorrow afternoonUp to 60°16° by 4 PM · Clear
Tomorrow nightDown to 52°11° by 3 AM · 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 7a	Partly sunny	38°3° (likely 33°1° to 45°7°)	34°1°	0%	6 mph10 km/h from N, gusts 9 mph15 km/h	100%	26%	0
Sat 8a	Sunny	40°4° (likely 34°1° to 44°7°)	36°2°	0%	6 mph10 km/h from N, gusts 10 mph15 km/h	96%	37%	0
Sat 9a	Partly sunny	45°7° (likely 40°4° to 45°7°)	42°6°	0%	6 mph10 km/h from N, gusts 8 mph13 km/h	79%	33%	0
Sat 10a	Sunny	50°10° (likely 45°7° to 50°10°)	48°9°	0%	5 mph8 km/h from N, gusts 7 mph11 km/h	66%	25%	1
Sat 11a	Cloudy	55°13° (likely 48°9° to 55°13°)	55°13°	0%	3 mph5 km/h from N, gusts 6 mph9 km/h	53%	57%	2
Sat 12p	Partly sunny	59°15° (likely 50°10° to 59°15°)	59°15°	0%	5 mph8 km/h from NW, gusts 6 mph10 km/h	44%	56%	3
Sat 1p	Partly sunny	56°13° (likely 52°11° to 60°16°)	56°13°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	51%	53%	3
Sat 2p	Partly sunny	58°14° (likely 53°12° to 61°16°)	58°14°	0%	7 mph11 km/h from W, gusts 9 mph15 km/h	49%	50%	2
Sat 3p	Mostly sunny	58°14° (likely 55°13° to 62°17°)	58°14°	0%	7 mph11 km/h from W, gusts 10 mph16 km/h	53%	46%	2
Sat 4p	Sunny	59°15° (likely 57°14° to 61°16°)	59°15°	0%	8 mph13 km/h from W, gusts 10 mph16 km/h	51%	36%	1
Sat 5p	Sunny	58°14° (likely 57°14° to 59°15°)	58°14°	0%	8 mph13 km/h from W, gusts 9 mph15 km/h	53%	23%	0
Sat 6p	Clear	56°13° (likely 53°12° to 59°15°)	56°13°	0%	7 mph11 km/h from W, gusts 9 mph15 km/h	59%	21%	0
Sat 7p	Clear	54°12° (likely 48°9° to 58°14°)	54°12°	0%	6 mph10 km/h from W, gusts 9 mph14 km/h	64%	10%	0
Sat 8p	Clear	54°12° (likely 45°7° to 57°14°)	54°12°	0%	5 mph8 km/h from W, gusts 8 mph12 km/h	66%	0%	0
Sat 9p	Clear	52°11° (likely 44°7° to 57°14°)	52°11°	0%	3 mph5 km/h from W, gusts 7 mph11 km/h	71%	0%	0
Sat 10p	Clear	50°10° (likely 42°6° to 57°14°)	50°10°	0%	3 mph5 km/h from NW, gusts 7 mph11 km/h	74%	0%	0
Sat 11p	Clear	49°9° (likely 41°5° to 56°13°)	49°9°	0%	3 mph5 km/h from NW, gusts 7 mph11 km/h	80%	0%	0
Sun 12a	Clear	48°9° (likely 40°4° to 56°13°)	48°9°	0%	3 mph5 km/h from NW, gusts 8 mph12 km/h	83%	0%	0
Sun 1a	Clear	45°7° (likely 39°4° to 54°12°)	45°7°	0%	3 mph5 km/h from NW, gusts 7 mph11 km/h	89%	0%	0
Sun 2a	Clear	44°7° (likely 38°3° to 53°12°)	44°7°	0%	3 mph5 km/h from N, gusts 6 mph9 km/h	93%	0%	0
Sun 3a	Clear	43°6° (likely 37°3° to 52°11°)	40°4°	0%	5 mph8 km/h from N, gusts 5 mph8 km/h	96%	0%	0
Sun 4a	Clear	42°6° (likely 36°2° to 51°11°)	39°4°	0%	5 mph8 km/h from N, gusts 5 mph8 km/h	96%	0%	0
Sun 5a	Clear	41°5° (likely 36°2° to 51°11°)	38°3°	0%	5 mph8 km/h from N, gusts 5 mph8 km/h	100%	0%	0
Sun 6a	Clear	41°5° (likely 35°2° to 50°10°)	38°3°	0%	5 mph8 km/h from N, gusts 5 mph8 km/h	89%	0%	0
Sun 7a	Sunny	41°5° (likely 34°1° to 49°9°)	38°3°	0%	5 mph8 km/h from N, gusts 5 mph8 km/h	85%	0%	0
Sun 8a	Sunny	46°8° (likely 36°2° to 49°9°)	44°7°	0%	5 mph8 km/h from N, gusts 5 mph8 km/h	73%	1%	0
Sun 9a	Sunny	47°8° (likely 42°6° to 49°9°)	45°7°	0%	5 mph8 km/h from N, gusts 5 mph9 km/h	74%	0%	1
Sun 10a	Sunny	51°11° (likely 51°11° to 52°11°)	51°11°	0%	3 mph5 km/h from N, gusts 4 mph7 km/h	66%	0%	2
Sun 11a	Sunny	54°12° (likely 53°12° to 59°15°)	54°12°	0%	2 mph3 km/h from NW, gusts 5 mph7 km/h	59%	0%	3
Sun 12p	Sunny	55°13° (likely 55°13° to 62°17°)	55°13°	0%	3 mph5 km/h from W, gusts 6 mph10 km/h	57%	0%	4
Sun 1p	Sunny	57°14° (likely 56°13° to 64°18°)	57°14°	0%	5 mph8 km/h from SW, gusts 8 mph13 km/h	55%	0%	4
Sun 2p	Sunny	58°14° (likely 57°14° to 64°18°)	58°14°	0%	5 mph8 km/h from SW, gusts 10 mph16 km/h	55%	0%	4
Sun 3p	Sunny	58°14° (likely 58°14° to 63°17°)	58°14°	0%	5 mph8 km/h from SW, gusts 10 mph16 km/h	55%	0%	3
Sun 4p	Sunny	60°16° (likely 58°14° to 61°16°)	60°16°	0%	6 mph10 km/h from SW, gusts 9 mph15 km/h	51%	0%	2
Sun 5p	Sunny	58°14° (likely 57°14° to 60°16°)	58°14°	0%	6 mph10 km/h from SW, gusts 10 mph16 km/h	57%	0%	1
Sun 6p	Clear	58°14° (likely 53°12° to 60°16°)	58°14°	0%	6 mph10 km/h from SW, gusts 10 mph17 km/h	57%	0%	0
Sun 7p	Clear	57°14° (likely 50°10° to 60°16°)	57°14°	0%	6 mph10 km/h from SW, gusts 10 mph17 km/h	62%	0%	0
Sun 8p	Clear	56°13° (likely 48°9° to 59°15°)	56°13°	0%	6 mph10 km/h from SW, gusts 11 mph18 km/h	64%	0%	0
Sun 9p	Clear	56°13° (likely 47°8° to 59°15°)	56°13°	0%	6 mph10 km/h from SW, gusts 12 mph20 km/h	64%	0%	0
Sun 10p	Clear	56°13° (likely 46°8° to 59°15°)	56°13°	0%	6 mph10 km/h from SW, gusts 13 mph20 km/h	64%	0%	0
Sun 11p	Clear	55°13° (likely 46°8° to 59°15°)	55°13°	0%	7 mph11 km/h from SW, gusts 12 mph19 km/h	66%	1%	0
Mon 12a	Clear	54°12° (likely 45°7° to 58°14°)	54°12°	0%	7 mph11 km/h from W, gusts 11 mph17 km/h	69%	0%	0
Mon 1a	Clear	54°12° (likely 45°7° to 57°14°)	54°12°	0%	8 mph13 km/h from W, gusts 9 mph15 km/h	66%	1%	0
Mon 2a	Clear	53°12° (likely 45°7° to 54°12°)	53°12°	0%	8 mph13 km/h from W, gusts 8 mph13 km/h	69%	1%	0
Mon 3a	Clear	52°11° (likely 43°6° to 52°11°)	52°11°	0%	8 mph13 km/h from W, gusts 4 mph6 km/h	69%	0%	0
Mon 4a	Clear	52°11° (likely 41°5° to 52°11°)	52°11°	0%	8 mph13 km/h from W, gusts 4 mph6 km/h	66%	0%	0
Mon 5a	Clear	52°11° (likely 41°5° to 52°11°)	52°11°	0%	8 mph13 km/h from W, gusts 4 mph6 km/h	66%	0%	0
Mon 6a	Clear	51°11° (likely 40°4° to 51°11°)	51°11°	0%	8 mph13 km/h from W, gusts 3 mph5 km/h	68%	2%	0

Days ahead

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

Today, Oct 24. Cloudy. High 59°15°, low 38°3°. Typical 61°16° / 48°9°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 40°4°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 59°15°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 41°5°
  Dry
Official NWS forecast
Today: Patchy frost before 9am. Mostly sunny, with a high near 59. Northwest wind 3 to 8 mph.
Tonight: Clear. Low around 38, with temperatures rising to around 41 overnight. Northwest wind 3 to 7 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
58°14°–62°17°
Low, likely
33°1°–44°7°
Typical high / low
61°16° / 48°9°
Wind
12 mph19 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 61°16°, low 41°5°. Typical 60°16° / 48°9°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°11°
  Dry
Official NWS forecast
Day: Sunny. High near 61, with temperatures falling to around 58 in the afternoon. Northwest wind 2 to 6 mph.
Night: Clear. Low around 41, with temperatures rising to around 52 overnight. Southwest wind around 8 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
59°15°–64°18°
Low, likely
34°1°–49°9°
Typical high / low
60°16° / 48°9°
Wind
14 mph23 km/h
UV peak
4
Monday, Oct 26. Sunny. High 64°18°, low 49°9°. Typical 60°16° / 48°9°. Dry. Mostly agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 49°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny. High near 64, with temperatures falling to around 62 in the afternoon. West wind 8 to 12 mph.
Night: Clear. Low around 49, with temperatures rising to around 51 overnight.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Best day outdoors this week: the one dry, mild day the forecasts agree on (high 64°18°).
High, likely
63°17°–68°20°
Low, likely
41°5°–49°9°
Typical high / low
60°16° / 48°9°
Wind
12 mph20 km/h, gusts 23 mph36 km/h
UV peak
4
Tuesday, Oct 27. Sunny. High 56°13°, low 41°5°. Typical 60°16° / 47°8°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 56°13°
  Dry
3. Evening
  6 PM–midnight
  Clear, 45°7°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 35°2°
  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 41.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
55°13°–57°14°
Low, likely
38°3°–46°8°
Typical high / low
60°16° / 47°8°
Wind
14 mph22 km/h, gusts 27 mph43 km/h
UV peak
4
Wednesday, Oct 28. Mostly sunny. High 56°13°, low 51°11°. Typical 59°15° / 47°8°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 36°2°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 55°13°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 46°8°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 44°7°
  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 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
52°11°–56°13°
Low, likely
28°−2°–51°11°
Typical high / low
59°15° / 47°8°
Wind
10 mph17 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 61°16°, low 55°13°. Typical 59°15° / 47°8°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 51°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 61.
Night: Partly cloudy, with a low around 55.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
56°13°–62°17°
Low, likely
41°5°–55°13°
Typical high / low
59°15° / 47°8°
Wind
14 mph22 km/h, gusts 32 mph52 km/h
UV peak
4
Friday, Oct 30. Partly sunny. High 63°17°, low 51°11°. Typical 59°15° / 46°8°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 51°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  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 51.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
63°17°–69°21°
Low, likely
49°9°–53°12°
Typical high / low
59°15° / 46°8°
Wind
12 mph19 km/h, gusts 29 mph47 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 64°18°, low 48°9°. Typical 58°14° / 46°8°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°9°
  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
58°14°–70°21°
Low, likely
45°7°–52°11°
Typical high / low
58°14° / 46°8°
Wind
14 mph23 km/h, gusts 27 mph44 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 61°16°, low 50°10°. Typical 58°14° / 46°8°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Partly sunny, 49°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 62°17°
  Dry
3. Evening
  6 PM–midnight
  Clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 55°13°
  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
41°5°–55°13°
Typical high / low
58°14° / 46°8°
Wind
11 mph17 km/h, gusts 19 mph30 km/h
UV peak
3
Monday, Nov 2. Cloudy. High 61°16°, low 55°13°. Typical 58°14° / 46°8°. Rain 0.06 in1.5 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  20% chance · 0.01 in0.3 mm
2. Afternoon
  noon–6 PM
  Cloudy, 63°17°
  20% chance · 0.02 in0.5 mm
3. Evening
  6 PM–midnight
  Mostly clear, 57°14°
  30% chance · 0.01 in0.3 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
58°14°–63°17°
Low, likely
54°12°–58°14°
Typical high / low
58°14° / 46°8°
Wind
12 mph20 km/h, gusts 22 mph35 km/h
UV peak
1

10 days15 days30 days

The outlook

Today
Dry, high 59°, low 38°.
Tomorrow
Dry, high 61°, low 41°.
Monday
Dry, high 64°, low 49°, warming up.
Rest of week
Mostly dry, highs 56–64°.

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

Atlantic Coast at Watch Hill Cove (IN MLLW)

7.6 mi

Below flood stage

Level: 3.5 ft

Forecast peak 3.8 ft Sat 8 AM

Reading from Sat 6 AM · NWS gauge page

Long Island Sound near New London Harbor (IN MLLW)

8.4 mi

Below flood stage

Level: 3.3 ft

Forecast peak 4.3 ft Sat 9 AM

Reading from Sat 6 AM · NWS gauge page

Pawcatuck at Westerly

12 mi

Below flood stage

Level: 4.3 ft
Flow: 413 cfs

Forecast peak 4.4 ft Sat 8 AM

Reading from Sat 6 AM · NWS gauge page

Fort Pond Bay at Montauk (IN MLLW)

15 mi

Below flood stage

Level: 3.3 ft

Forecast peak 3.9 ft Sat 9 AM

Reading from Sat 6:06 AM · NWS gauge page

For your home

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

Heating this week

About 69% less heating than a typical week.

This week 25Typical 81

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 11
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at. About 5 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 28°F).

Open the windows?

No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.

Is this typical?

Montauk Airport · official normals 1991–2020 · records 1998–2026

Oct 24, today vs a typical year

Today’s expected high is 2°1° colder than typical.

Last 7 days vs normal

—SunOct 18
—MonOct 19
—TueOct 20
—WedOct 21
—ThuOct 22
—FriOct 23
—SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 44 min; Losing 2 min 30 s a day; shortest Dec 21, 1 h 32 min less
Golden hour: 5:15–6:11 PM; Morning 6:52–7:48 AM
Blue hour: 6:11–6:21 PM; Morning 6:41–6:52 AM; first light 6:41 AM

Stars tonight? Fair

Clear 6:21 PM–6:42 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:20 AM · rises 4:50 PM
Full moon: Oct 26
New moon: Nov 9

Looking southeast from Fishers 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.

1 active weather alert

Frost Advisory

Fishers 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

Atlantic Coast at Watch Hill Cove (IN MLLW)

Long Island Sound near New London Harbor (IN MLLW)

Pawcatuck at Westerly

Fort Pond Bay at Montauk (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