• Today

    Sep 4

    81°Lo 62°

    Clouds and sun; not as warm

    Excellent for an outdoor concert
    • Hi
      RealFeel
      83°
    • Precip
      44%
    • Wind
      Speed
      12 mph
    more
  • Sat

    Sep 5

    78°Lo 58°

    Sunshine and pleasant

    Excellent for an outdoor concert
    • Hi
      RealFeel
      81°
    • Precip
      3%
    • Wind
      Speed
      8 mph
    more
  • Sun

    Sep 6

    81°Lo 62°

    Plenty of sun

    Excellent for an outdoor concert
    • Hi
      RealFeel
      86°
    • Precip
      9%
    • Wind
      Speed
      6 mph
  • Mon

    Sep 7

    84°Lo 68°

    Sunny, warm and humid

    Excellent for an outdoor concert
    • Hi
      RealFeel
      87°
    • Precip
      6%
    • Wind
      Speed
      9 mph
    more
  • Tue

    Sep 8

    87°Lo 70°

    Mostly sunny, warm and humid

    Excellent for an outdoor concert
    • Hi
      RealFeel
      92°
    • Precip
      7%
    • Wind
      Speed
      10 mph
    more
Next Previous
Hi 81° RealFeel® 86° Precipitation 9%

Day

N

E

S

W

  • SE 6 mph
  • Gusts: 9 mph

Plenty of sun

  • Max UV Index: 6 (High)
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs
Lo 62° RealFeel® 64° Precipitation 15%

Night

N

E

S

W

  • SW 5 mph
  • Gusts: 9 mph

Clear

  • Max UV Index: N/A
  • Thunderstorms: 0%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Temperature History - Sep 6

more Historical Weather Data >
  Today Normal Record 9/6/2014
High 81° 77° 90° (1985) 86°
Low 62° 61° 49° (2000) 67°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:24 AM with 12:53 of sunlight, then sets at 7:17 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:17 AM with 14:41 of moolight, then sets at 2:58 PM

Holtsville Weather Report

NYC: Heat to Rebuild Labor Day Weekend After Cooldown

September 4, 2015; 5:07 AM ET

A backdoor front will trim temperatures, haze and humidity around New York City early this weekend before all three conditions build by early next week. more >

Bad Weather and the Ballot Box

Oct 28, 2012; 5:00 AM ET The presidential election is only days away. How does the weather affect the number of people who show up to vote?