Observed 6:10 AM EDT at KFRG

Cold Spring Harbor, NY weather

Clear and 43°6°.

Forecasts agree

Now 43°6°

Clear · Feels like 39°4°

Wind: 6 mph9 km/h; From the north. Up to 6 mph9 km/h through 6 PM
Dew point: 39°4°; Comfortable
UV index: 0Low; Moderate 11 AM–4 PM · peak 4
Air quality: 38Good; PM2.5 (fine particles) · tomorrow moderate
Pressure: 30.51 inHg1033 hPa; Rising slowly · +0.03 inHg+1.1 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 60°16° today at 3 PM

This morningUp to 56°13° by 11 AM · Partly cloudy
This afternoonNear 59°15° · Partly cloudy
TonightDown to 44°7° by 4 AM · Clear
Tomorrow morningUp to 57°14° by 11 AM · Clear
Tomorrow afternoonUp to 64°18° by 4 PM · Clear
Tomorrow nightDown to 44°7° 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 6a	Clear	42°6° (likely 40°4° to 44°7°)	42°6°	0%	3 mph5 km/h from N, gusts 9 mph14 km/h	86%	10%	0
Sat 7a	Sunny	42°6° (likely 39°4° to 43°6°)	42°6°	0%	3 mph5 km/h from N, gusts 9 mph15 km/h	86%	34%	0
Sat 8a	Mostly cloudy	43°6° (likely 39°4° to 44°7°)	43°6°	0%	3 mph5 km/h from N, gusts 9 mph15 km/h	86%	49%	0
Sat 9a	Mostly cloudy	48°9° (likely 46°8° to 49°9°)	48°9°	0%	3 mph5 km/h from N, gusts 8 mph13 km/h	77%	64%	1
Sat 10a	Cloudy	53°12° (likely 50°10° to 53°12°)	53°12°	0%	3 mph5 km/h from N, gusts 7 mph11 km/h	66%	80%	2
Sat 11a	Cloudy	56°13° (likely 52°11° to 56°13°)	56°13°	0%	3 mph5 km/h from N, gusts 6 mph10 km/h	57%	80%	3
Sat 12p	Cloudy	59°15° (likely 55°13° to 59°15°)	59°15°	0%	5 mph8 km/h from N, gusts 7 mph11 km/h	49%	79%	3
Sat 1p	Cloudy	59°15° (likely 56°13° to 59°15°)	59°15°	0%	5 mph8 km/h from NW, gusts 7 mph11 km/h	47%	78%	4
Sat 2p	Cloudy	59°15° (likely 58°14° to 60°16°)	59°15°	0%	5 mph8 km/h from NW, gusts 6 mph10 km/h	45%	67%	4
Sat 3p	Mostly cloudy	60°16° (likely 59°15° to 61°16°)	60°16°	0%	5 mph8 km/h from W, gusts 7 mph10 km/h	42%	56%	3
Sat 4p	Mostly sunny	60°16° (likely 59°15° to 61°16°)	60°16°	0%	3 mph5 km/h from W, gusts 6 mph10 km/h	42%	27%	2
Sat 5p	Partly sunny	59°15° (likely 58°14° to 59°15°)	59°15°	0%	3 mph5 km/h from W, gusts 6 mph10 km/h	45%	26%	1
Sat 6p	Partly cloudy	57°14° (likely 53°12° to 57°14°)	57°14°	0%	2 mph3 km/h from W, gusts 6 mph10 km/h	51%	43%	0
Sat 7p	Mostly clear	54°12° (likely 50°10° to 54°12°)	54°12°	0%	2 mph3 km/h from SW, gusts 5 mph7 km/h	54%	42%	0
Sat 8p	Mostly clear	52°11° (likely 49°9° to 52°11°)	52°11°	0%	2 mph3 km/h from SW, gusts 4 mph7 km/h	61%	31%	0
Sat 9p	Mostly clear	51°11° (likely 48°9° to 51°11°)	51°11°	0%	1 mph2 km/h from W, gusts 4 mph6 km/h	63%	8%	0
Sat 10p	Clear	49°9° (likely 46°8° to 49°9°)	49°9°	0%	1 mph2 km/h from W, gusts 4 mph6 km/h	68%	1%	0
Sat 11p	Clear	48°9° (likely 45°7° to 48°9°)	48°9°	0%	1 mph2 km/h from W, gusts 4 mph7 km/h	71%	0%	0
Sun 12a	Clear	47°8° (likely 44°7° to 47°8°)	47°8°	0%	1 mph2 km/h from NW, gusts 7 mph11 km/h	74%	0%	0
Sun 1a	Clear	46°8° (likely 43°6° to 46°8°)	46°8°	0%	2 mph3 km/h from NW, gusts 7 mph12 km/h	76%	0%	0
Sun 2a	Clear	45°7° (likely 42°6° to 46°8°)	45°7°	0%	2 mph3 km/h from NW, gusts 8 mph12 km/h	82%	0%	0
Sun 3a	Clear	45°7° (likely 42°6° to 46°8°)	45°7°	0%	2 mph3 km/h from NW, gusts 7 mph11 km/h	79%	0%	0
Sun 4a	Clear	44°7° (likely 40°4° to 47°8°)	44°7°	0%	2 mph3 km/h from NW, gusts 7 mph11 km/h	82%	0%	0
Sun 5a	Clear	44°7° (likely 40°4° to 47°8°)	44°7°	0%	3 mph5 km/h from NW, gusts 6 mph9 km/h	82%	0%	0
Sun 6a	Clear	43°6° (likely 39°4° to 47°8°)	43°6°	0%	2 mph3 km/h from NW, gusts 5 mph8 km/h	82%	0%	0
Sun 7a	Sunny	44°7° (likely 39°4° to 46°8°)	44°7°	0%	2 mph3 km/h from NW, gusts 4 mph6 km/h	79%	0%	0
Sun 8a	Sunny	43°6° (likely 39°4° to 46°8°)	43°6°	0%	3 mph5 km/h from N, gusts 4 mph6 km/h	86%	0%	0
Sun 9a	Sunny	48°9° (likely 45°7° to 49°9°)	48°9°	0%	3 mph5 km/h from NW, gusts 4 mph6 km/h	77%	0%	1
Sun 10a	Sunny	53°12° (likely 52°11° to 55°13°)	53°12°	0%	3 mph5 km/h from NW, gusts 4 mph6 km/h	64%	0%	2
Sun 11a	Sunny	57°14° (likely 57°14° to 59°15°)	57°14°	0%	3 mph5 km/h from NW, gusts 5 mph7 km/h	55%	0%	3
Sun 12p	Sunny	59°15° (likely 59°15° to 61°16°)	59°15°	0%	3 mph5 km/h from NW, gusts 5 mph8 km/h	49%	0%	4
Sun 1p	Sunny	62°17° (likely 62°17° to 63°17°)	62°17°	0%	3 mph5 km/h from NW, gusts 4 mph7 km/h	43%	0%	4
Sun 2p	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%	4
Sun 3p	Sunny	63°17° (likely 63°17° to 65°18°)	63°17°	0%	3 mph5 km/h from W, gusts 4 mph6 km/h	39%	0%	3
Sun 4p	Sunny	64°18° (likely 63°17° to 64°18°)	64°18°	0%	3 mph5 km/h from W, gusts 4 mph7 km/h	38%	0%	2
Sun 5p	Sunny	63°17° (likely 61°16° to 63°17°)	63°17°	0%	2 mph3 km/h from W, gusts 4 mph7 km/h	41%	0%	1
Sun 6p	Clear	60°16° (likely 55°13° to 60°16°)	60°16°	0%	2 mph3 km/h from SW, gusts 7 mph12 km/h	47%	0%	0
Sun 7p	Clear	56°13° (likely 52°11° to 56°13°)	56°13°	0%	3 mph5 km/h from SW, gusts 8 mph13 km/h	55%	0%	0
Sun 8p	Clear	52°11° (likely 49°9° to 53°12°)	52°11°	0%	3 mph5 km/h from SW, gusts 10 mph16 km/h	69%	0%	0
Sun 9p	Clear	50°10° (likely 47°8° 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 46°8° to 49°9°)	49°9°	0%	3 mph5 km/h from SW, gusts 9 mph15 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 45°7° to 49°9°)	47°8°	0%	3 mph5 km/h from W, gusts 9 mph15 km/h	83%	0%	0
Mon 1a	Clear	46°8° (likely 44°7° to 49°9°)	46°8°	0%	3 mph5 km/h from W, gusts 9 mph14 km/h	83%	0%	0
Mon 2a	Clear	45°7° (likely 42°6° to 50°10°)	45°7°	0%	3 mph5 km/h from W, gusts 9 mph15 km/h	86%	0%	0
Mon 3a	Clear	44°7° (likely 40°4° to 54°12°)	44°7°	0%	3 mph5 km/h from W, gusts 9 mph15 km/h	86%	0%	0
Mon 4a	Clear	44°7° (likely 40°4° to 54°12°)	41°5°	0%	5 mph8 km/h from W, gusts 9 mph15 km/h	86%	0%	0
Mon 5a	Clear	44°7° (likely 41°5° to 53°12°)	41°5°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	86%	0%	0

Days ahead

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

Today, Oct 24. Cloudy. High 61°16°, low 42°6°. Typical 61°16° / 45°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly cloudy, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Mostly cloudy, 60°16°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 44°7°
  Dry
Official NWS forecast
Today: Partly sunny. High near 61, with temperatures falling to around 59 in the afternoon. Northwest wind around 5 mph.
Tonight: Mostly clear. Low around 42, with temperatures rising to around 44 overnight. Northwest wind around 3 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
59°15°–61°16°
Low, likely
39°4°–43°6°
Typical high / low
61°16° / 45°7°
Wind
6 mph10 km/h, gusts 13 mph21 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 65°18°, low 43°6°. Typical 61°16° / 45°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 44°7°
  Dry
Official NWS forecast
Day: Sunny. High near 65, with temperatures falling to around 63 in the afternoon. Northwest wind around 3 mph.
Night: Clear, with a low around 43. Southwest wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–65°18°
Low, likely
39°4°–44°7°
Typical high / low
61°16° / 45°7°
Wind
7 mph11 km/h, gusts 13 mph21 km/h
UV peak
4
Monday, Oct 26. Sunny. High 68°20°, low 47°8°. Typical 60°16° / 45°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 53°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny. High near 68, with temperatures falling to around 66 in the afternoon. West wind around 6 mph.
Night: Clear. Low around 47, with temperatures rising to around 49 overnight.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
65°18°–68°20°
Low, likely
42°6°–47°8°
Typical high / low
60°16° / 45°7°
Wind
8 mph12 km/h, gusts 16 mph25 km/h
UV peak
4
Tuesday, Oct 27. Mostly sunny. High 57°14°, low 40°4°. Typical 60°16° / 44°7°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 56°13°
  Dry
3. Evening
  6 PM–midnight
  Clear, 49°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 57.
Night: Mostly clear, with a low around 40.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
57°14°–59°15°
Low, likely
40°4°–50°10°
Typical high / low
60°16° / 44°7°
Wind
15 mph23 km/h, gusts 26 mph41 km/h
UV peak
4
Wednesday, Oct 28. Partly sunny. High 58°14°, low 47°8°. Typical 60°16° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 57°14°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 50°10°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 47°8°
  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 47.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
55°13°–59°15°
Low, likely
41°5°–47°8°
Typical high / low
60°16° / 44°7°
Wind
11 mph17 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 65°18°, low 51°11°. Typical 59°15° / 44°7°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 48°9°
  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, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 65.
Night: Partly cloudy, with a low around 51.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–65°18°
Low, likely
46°8°–51°11°
Typical high / low
59°15° / 44°7°
Wind
10 mph16 km/h, gusts 28 mph45 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 67°19°, low 48°9°. Typical 59°15° / 43°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 52°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 67.
Night: Mostly clear, with a low around 48.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
67°19°–72°22°
Low, likely
48°9°–52°11°
Typical high / low
59°15° / 43°6°
Wind
11 mph18 km/h, gusts 25 mph41 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 66°19°, low 51°11°. Typical 59°15° / 43°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 58°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
59°15°–72°22°
Low, likely
48°9°–53°12°
Typical high / low
59°15° / 43°6°
Wind
13 mph22 km/h, gusts 25 mph40 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 64°18°, low 53°12°. Typical 58°14° / 43°6°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 54°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 58°15°
  Dry
4. Overnight
  midnight–6 AM
  Drizzle, 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
57°14°–68°20°
Low, likely
49°9°–56°13°
Typical high / low
58°14° / 43°6°
Wind
8 mph13 km/h, gusts 18 mph28 km/h
UV peak
3
Monday, Nov 2. Drizzle. High 64°18°, low 58°14°. Typical 58°14° / 42°6°. Rain 0.04 in1 mm, 30% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 60°16°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 60°16°
  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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
61°16°–66°19°
Low, likely
56°13°–60°16°
Typical high / low
58°14° / 42°6°
Wind
9 mph15 km/h, gusts 19 mph31 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 61°, low 42°.
Tomorrow
Dry, high 65°, low 43°, warming up.
Monday
Dry, high 68°, low 47°, warming up.
Rest of week
Mostly dry, highs 57–67°.

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)

17 mi

Below flood stage

Level: 1.6 ft

Forecast peak 10.2 ft Tue 12 PM

Reading from Sat 5:06 AM · NWS gauge page

Long Island Sound above Lattingtown (IN MLLW)

7.7 mi

Below flood stage

Level: 2.7 ft

Reading from Sat 4:42 AM · NWS gauge page

Carlls River at Babylon

13 mi

Level: 0.5 ft
Flow: 15 cfs

Reading from Sat 5 AM · NWS gauge page

Long Island Sound at Stamford (IN MLLW)

13 mi

Below flood stage

Level: 1.6 ft

Reading from Sat 5 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 26Typical 90

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 17
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 1 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 39°F).

Open the windows?

Today, 3:00 PM–4:00 PM

Good stretch to open the windows.

Is this typical?

Farmingdale Republic Airport · official normals 1991–2020 · records 1999–2026

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

Cold Spring Harbor 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: 5:22–6:17 PM; Morning 6:58–7:53 AM
Blue hour: 6:17–6:28 PM; Morning 6:47–6:58 AM; first light 6:47 AM

Stars tonight? Fair

Clear 9 PM–6:48 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

96% lit · growing

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

Looking north from Cold Spring Harbor. The highest point on the skyline is about 8,000 ft, 83 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Cold Spring Harbor, 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)

Long Island Sound above Lattingtown (IN MLLW)

Carlls River at Babylon

Long Island Sound at Stamford (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