Observed 4:50 PM EDT at KHPN

Locust Valley, NY weather

Sunny and 61°16°, jacket by 7 PM.

Mostly agree

Now 61°16°

Sunny

Wind: 6 mph9 km/h; From the west-northwest. Up to 6 mph9 km/h through 5 AM
Dew point: 30°−1°; Dry, static shocks likely
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

About the same as this time yesterday (59°15° then, 60°16° now)

Good hours for

Low 43°6° tonight at 5 AM
Above 50°10° tomorrow by 10 AM
High 65°18° tomorrow at 3 PM
Below 60°16° tomorrow night after 7 PM

TonightDown to 43°6° by 5 AM · Clear
Tomorrow morningUp to 57°14° by 11 AM · Clear
Tomorrow afternoonUp to 65°18° by 3 PM · Clear
Tomorrow nightDown to 47°8° by 3 AM · Clear
Monday morningUp to 59°15° by 11 AM · Clear
Monday afternoonUp to 68°20° 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	Mostly sunny	59°15° (likely 58°14° to 61°16°)	59°15°	0%	2 mph3 km/h from W, gusts 6 mph10 km/h	40%	30%	1
Sat 6p	Mostly clear	57°14° (likely 55°13° to 57°14°)	57°14°	0%	2 mph3 km/h from W, gusts 5 mph8 km/h	45%	47%	0
Sat 7p	Cloudy	55°13° (likely 53°12° to 55°13°)	55°13°	0%	2 mph3 km/h from SW, gusts 6 mph9 km/h	51%	63%	0
Sat 8p	Mostly clear	51°11° (likely 51°11° to 54°12°)	51°11°	0%	2 mph3 km/h from S, gusts 4 mph6 km/h	59%	50%	0
Sat 9p	Clear	50°10° (likely 49°9° to 53°12°)	50°10°	0%	2 mph3 km/h from SW, gusts 5 mph8 km/h	63%	40%	0
Sat 10p	Clear	48°9° (likely 48°9° to 51°11°)	48°9°	0%	2 mph3 km/h from SW, gusts 6 mph9 km/h	68%	34%	0
Sat 11p	Clear	48°9° (likely 46°8° to 50°10°)	48°9°	0%	2 mph3 km/h from W, gusts 5 mph8 km/h	68%	14%	0
Sun 12a	Clear	47°8° (likely 46°8° to 49°9°)	47°8°	0%	2 mph3 km/h from W, gusts 5 mph7 km/h	71%	0%	0
Sun 1a	Clear	47°8° (likely 45°7° to 49°9°)	46°8°	0%	3 mph5 km/h from W, gusts 4 mph7 km/h	68%	0%	0
Sun 2a	Clear	45°7° (likely 44°7° to 49°9°)	44°7°	0%	3 mph5 km/h from NW, gusts 5 mph8 km/h	73%	0%	0
Sun 3a	Clear	44°7° (likely 44°7° to 49°9°)	42°6°	0%	3 mph5 km/h from NW, gusts 5 mph8 km/h	76%	1%	0
Sun 4a	Clear	44°7° (likely 43°6° to 48°9°)	42°6°	0%	3 mph5 km/h from NW, gusts 4 mph7 km/h	76%	2%	0
Sun 5a	Clear	43°6° (likely 42°6° to 47°8°)	41°5°	0%	3 mph5 km/h from NW, gusts 4 mph6 km/h	79%	3%	0
Sun 6a	Clear	44°7° (likely 42°6° to 46°8°)	42°6°	0%	3 mph5 km/h from N, gusts 4 mph6 km/h	76%	2%	0
Sun 7a	Sunny	43°6° (likely 41°5° to 45°7°)	41°5°	0%	3 mph5 km/h from N, gusts 4 mph6 km/h	79%	2%	0
Sun 8a	Sunny	44°7° (likely 42°6° to 44°7°)	42°6°	0%	3 mph5 km/h from N, gusts 4 mph6 km/h	76%	1%	0
Sun 9a	Sunny	49°9° (likely 45°7° to 49°9°)	48°9°	0%	3 mph5 km/h from N, gusts 4 mph6 km/h	63%	1%	1
Sun 10a	Sunny	54°12° (likely 52°11° to 54°12°)	54°12°	0%	2 mph3 km/h from N, gusts 5 mph7 km/h	55%	0%	2
Sun 11a	Sunny	57°14° (likely 56°13° to 58°14°)	57°14°	0%	2 mph3 km/h from NW, gusts 5 mph8 km/h	49%	0%	3
Sun 12p	Sunny	61°16° (likely 59°15° to 61°16°)	61°16°	0%	2 mph3 km/h from NW, gusts 6 mph10 km/h	42%	0%	4
Sun 1p	Sunny	63°17° (likely 62°17° to 63°17°)	63°17°	0%	3 mph5 km/h from W, gusts 7 mph11 km/h	38%	0%	4
Sun 2p	Sunny	64°18° (likely 63°17° to 65°18°)	64°18°	0%	3 mph5 km/h from W, gusts 6 mph10 km/h	35%	0%	4
Sun 3p	Sunny	65°18° (likely 64°18° to 66°19°)	65°18°	0%	3 mph5 km/h from W, gusts 6 mph9 km/h	34%	0%	3
Sun 4p	Sunny	64°18° (likely 63°17° to 66°19°)	64°18°	0%	2 mph3 km/h from SW, gusts 6 mph10 km/h	37%	0%	2
Sun 5p	Sunny	64°18° (likely 62°17° to 65°18°)	64°18°	0%	2 mph3 km/h from SW, gusts 6 mph9 km/h	37%	0%	1
Sun 6p	Clear	61°16° (likely 57°14° to 61°16°)	61°16°	0%	3 mph5 km/h from SW, gusts 7 mph12 km/h	42%	0%	0
Sun 7p	Clear	57°14° (likely 54°12° to 57°14°)	57°14°	0%	3 mph5 km/h from SW, gusts 10 mph16 km/h	51%	0%	0
Sun 8p	Clear	54°12° (likely 51°11° to 54°12°)	54°12°	0%	5 mph8 km/h from SW, gusts 10 mph16 km/h	59%	0%	0
Sun 9p	Clear	53°12° (likely 50°10° to 53°12°)	53°12°	0%	5 mph8 km/h from SW, gusts 9 mph15 km/h	64%	0%	0
Sun 10p	Clear	52°11° (likely 49°9° to 52°11°)	52°11°	0%	5 mph8 km/h from SW, gusts 8 mph13 km/h	69%	0%	0
Sun 11p	Clear	51°11° (likely 48°9° to 51°11°)	51°11°	0%	5 mph8 km/h from SW, gusts 8 mph12 km/h	71%	0%	0
Mon 12a	Clear	51°11° (likely 47°8° to 51°11°)	51°11°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	71%	0%	0
Mon 1a	Clear	50°10° (likely 47°8° to 50°10°)	48°9°	0%	5 mph8 km/h from W, gusts 9 mph14 km/h	74%	0%	0
Mon 2a	Clear	49°9° (likely 46°8° to 49°9°)	47°8°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	77%	0%	0
Mon 3a	Clear	47°8° (likely 45°7° to 48°9°)	45°7°	0%	5 mph8 km/h from W, gusts 8 mph13 km/h	83%	0%	0
Mon 4a	Clear	47°8° (likely 45°7° to 47°8°)	44°7°	0%	6 mph10 km/h from W, gusts 8 mph13 km/h	83%	0%	0
Mon 5a	Clear	47°8° (likely 44°7° to 47°8°)	44°7°	0%	6 mph10 km/h from W, gusts 9 mph14 km/h	83%	1%	0
Mon 6a	Clear	46°8° (likely 44°7° to 47°8°)	43°6°	0%	6 mph10 km/h from W, gusts 9 mph14 km/h	83%	1%	0
Mon 7a	Sunny	46°8° (likely 44°7° to 47°8°)	43°6°	0%	6 mph10 km/h from W, gusts 9 mph14 km/h	83%	13%	0
Mon 8a	Sunny	47°8° (likely 45°7° to 48°9°)	44°7°	0%	6 mph10 km/h from W, gusts 10 mph15 km/h	79%	15%	0
Mon 9a	Sunny	51°11° (likely 49°9° to 52°11°)	51°11°	0%	6 mph10 km/h from W, gusts 11 mph17 km/h	71%	11%	1
Mon 10a	Sunny	55°13° (likely 53°12° to 56°13°)	55°13°	0%	6 mph10 km/h from W, gusts 13 mph21 km/h	66%	8%	2
Mon 11a	Sunny	59°15° (likely 57°14° to 60°16°)	59°15°	0%	6 mph10 km/h from W, gusts 13 mph20 km/h	62%	8%	3
Mon 12p	Sunny	62°17° (likely 59°15° to 63°17°)	62°17°	0%	6 mph10 km/h from W, gusts 12 mph19 km/h	56%	7%	4
Mon 1p	Sunny	65°18° (likely 62°17° to 65°18°)	65°18°	0%	7 mph11 km/h from W, gusts 12 mph19 km/h	52%	3%	4
Mon 2p	Sunny	67°19° (likely 64°18° to 67°19°)	67°19°	0%	7 mph11 km/h from W, gusts 12 mph19 km/h	49%	2%	4
Mon 3p	Sunny	68°20° (likely 65°18° to 69°21°)	68°20°	0%	6 mph10 km/h from W, gusts 11 mph18 km/h	49%	2%	3
Mon 4p	Sunny	68°20° (likely 66°19° to 70°21°)	68°20°	0%	6 mph10 km/h from W, gusts 12 mph19 km/h	51%	1%	2

Days ahead

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

Today, Oct 24. Cloudy. High 60°16°, low 43°6°. Typical 60°16° / 43°6°. Dry. Mostly agree.
1. Evening
  6 PM–midnight
  Clear, 51°11°
  Dry
2. Overnight
  midnight–6 AM
  Clear, 43°6°
  Dry
Official NWS forecast
Today: Sunny, with a high near 60. West wind around 2 mph.
Tonight: Mostly clear, with a low around 43. West wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
60°16°–62°17°
Low, likely
41°5°–44°7°
Typical high / low
60°16° / 43°6°
Wind
7 mph11 km/h
UV peak
4
Tomorrow, Oct 25. Sunny. High 65°18°, low 46°8°. Typical 60°16° / 42°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 44°7°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 65°18°
  Dry
3. Evening
  6 PM–midnight
  Clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Official NWS forecast
Day: Sunny, with a high near 65. Northwest wind around 3 mph.
Night: Clear, with a low around 46. Southwest wind around 6 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–66°19°
Low, likely
41°5°–46°8°
Typical high / low
60°16° / 42°6°
Wind
8 mph12 km/h, gusts 14 mph23 km/h
UV peak
4
Monday, Oct 26. Sunny. High 68°20°, low 50°10°. Typical 59°15° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 53°11°
  Dry
Official NWS forecast
Day: Sunny, with a high near 68. West wind around 7 mph.
Night: Clear. Low around 50, with temperatures rising to around 52 overnight.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–69°21°
Low, likely
43°6°–50°10°
Typical high / low
59°15° / 42°6°
Wind
8 mph13 km/h, gusts 21 mph34 km/h
UV peak
4
Tuesday, Oct 27. Sunny. High 59°15°, low 44°7°. Typical 59°15° / 42°6°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  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 59.
Night: Mostly clear, with a low around 44.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
58°14°–60°16°
Low, likely
44°7°–50°10°
Typical high / low
59°15° / 42°6°
Wind
14 mph22 km/h, gusts 25 mph40 km/h
UV peak
4
Wednesday, Oct 28. Partly sunny. High 59°15°, low 48°9°. Typical 59°15° / 42°6°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 58°15°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 59.
Night: Partly cloudy, with a low around 48.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
56°13°–60°16°
Low, likely
42°6°–48°9°
Typical high / low
59°15° / 42°6°
Wind
11 mph18 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 66°19°, low 52°11°. Typical 58°14° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 50°10°
  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
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 66.
Night: Mostly clear, with a low around 52.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–66°19°
Low, likely
48°9°–52°11°
Typical high / low
58°14° / 41°5°
Wind
9 mph15 km/h, gusts 28 mph45 km/h
UV peak
4
Friday, Oct 30. Mostly sunny. High 70°21°, low 52°11°. Typical 58°14° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 72°22°
  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 70.
Night: Mostly clear, with a low around 52.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
69°21°–73°23°
Low, likely
51°11°–53°12°
Typical high / low
58°14° / 41°5°
Wind
8 mph13 km/h, gusts 25 mph40 km/h
UV peak
4
Saturday, Oct 31. Cloudy. High 67°19°, low 52°11°. Typical 58°14° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 56°13°
  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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–70°21°
Low, likely
49°9°–54°12°
Typical high / low
58°14° / 41°5°
Wind
11 mph17 km/h, gusts 25 mph40 km/h
UV peak
4
Sunday, Nov 1. Cloudy. High 66°19°, low 55°13°. Typical 57°14° / 40°4°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 58°15°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Drizzle, 61°16°
  30% chance
4. Overnight
  midnight–6 AM
  Showers, 61°16°
  40% chance · 0.1 in2.5 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°–71°22°
Low, likely
53°12°–57°14°
Typical high / low
57°14° / 40°4°
Wind
10 mph17 km/h, gusts 23 mph36 km/h
UV peak
2
Monday, Nov 2. Drizzle. High 67°19°, low 59°15°. Typical 57°14° / 40°4°. Rain 0.85 in22 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Showers, 63°17°
  40% chance · 0.31 in7.9 mm
2. Afternoon
  noon–6 PM
  Showers, 67°19°
  30% chance · 0.29 in7.5 mm
3. Evening
  6 PM–midnight
  Drizzle, 65°18°
  30% chance · 0.39 in10 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
65°18°–69°21°
Low, likely
56°13°–64°18°
Typical high / low
57°14° / 40°4°
Wind
18 mph29 km/h, gusts 37 mph60 km/h

10 days15 days30 days

The outlook

Today
Dry, high 60°, low 43°.
Tomorrow
Dry, high 65°, low 46°, warming up.
Monday
Dry, high 68°, low 50°, warming up.
Rest of week
Mostly dry, highs 59–70°.

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

For your home

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

Heating this week

About 77% less heating than a typical week.

This week 23Typical 102

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 15
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 30°F).

Open the windows?

Sun, 12:00 PM–6:00 PM

Good stretch to open the windows.

Is this typical?

WESTCHESTER CO AP · official normals 1991–2020 · records 1948–2026

Oct 24, today vs a typical year

Today’s expected high is about typical for the date.

Last 7 days vs normal

On average 2°1° colder than normal (daily mean temperature).

−7°−4°SunOct 18
−2°−1°MonOct 19
—TueOct 20
±0°WedOct 21
+1°ThuOct 22
−1°FriOct 23
—SatOct 24

Locust Valley 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

Mostly clear 11 PM–6:48 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today: sets 5:26 AM · rises 4:57 PM
Full moon: Oct 26
New moon: Nov 9

Looking north from Locust Valley. The highest point on the skyline is about 800 ft, 17 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.