• Today

    Jun 30

    81°Lo 68°

    Partly sunny

    Beneficial weather for migraines
    • Hi
      RealFeel
      85°
    • UV
      8 - Very High
    • Cloud
      Cover
      26%
    more
  • Wed

    Jul 1

    78°Lo 67°

    A shower and t-storm around

    Beneficial weather for migraines
    • Hi
      RealFeel
      83°
    • UV
      6 - High
    • Cloud
      Cover
      81%
  • Thu

    Jul 2

    80°Lo 66°

    A shower or thunderstorm

    Beneficial weather for migraines
    • Hi
      RealFeel
      88°
    • UV
      6 - High
    • Cloud
      Cover
      82%
    more
  • Fri

    Jul 3

    78°Lo 62°

    Clouds and sun

    Beneficial weather for migraines
    • Hi
      RealFeel
      82°
    • UV
      7 - High
    • Cloud
      Cover
      60%
    more
  • Sat

    Jul 4

    78°Lo 65°

    Chance of a thunderstorm

    Beneficial weather for migraines
    • Hi
      RealFeel
      85°
    • UV
      7 - High
    • Cloud
      Cover
      45%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Wed
5am
6am 7am 8am 9am 10am 11am 12pm
  5am 6am 7am 8am 9am 10am 11am 12pm
Forecast
Cloudy
Cloudy
Cloudy
Cloudy
Cloudy
T-storms
Cloudy
Mostly Cloudy
Temp (°F) 68° 68° 69° 71° 72° 73° 74° 76°
RealFeel® 67° 68° 68° 71° 74° 72° 78° 82°
Humidity 90% 88% 86% 85% 83% 79% 78% 76%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Rain
 
40%
 
34%
 
37%
 
43%
 
47%
 
51%
 
47%
 
47%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  5am 6am 7am 8am 9am 10am 11am 12pm
Wind (mph) 8 SE 8 SE 8 SE 8 SE 8 SSE 9 SSE 9 S 9 SSW
UV Index 0 0 0 1 2 2 3 5
Cloud Cover 95% 95% 95% 90% 90% 90% 90% 86%
Dew Point 65° 65° 65° 66° 67° 66° 67° 68°
Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F Middle Grid line 65 F

Temperature History - Jul 1

more Historical Weather Data >
  Today Normal Record 7/1/2014
High 78° 80° 89° (2012) 85°
Low 67° 64° 50° (1988) 72°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:24 AM with 15:04 of sunlight, then sets at 8:28 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 7:56 PM with 10:11 of moolight, then sets at 6:07 AM

Holtsville Weather Report

NYC: Intermittent Risk of Storms for Activities Through July Fourth

June 30, 2015; 12:59 AM ET

Several days through the July Fourth weekend will bring the potential for showers and thunderstorms to the New York City area, up to the mountains and down at the beaches. more >

Wed. Migraine Headache

Wed. UV Index