• Today

    Aug 31

    84°Lo 70°

    Partly sunny and humid

    Poor for stargazing
    • Cloud
      Cover
      92%
    • Precip
      56%
    • Hours of Precip
      1
    more
  • Thu

    Sep 1

    79°Lo 65°

    A couple of showers

    Fair for stargazing
    • Cloud
      Cover
      47%
    • Precip
      21%
    • Hours of Precip
      1.5
  • Fri

    Sep 2

    79°Lo 64°

    Partly sunny

    Good for stargazing
    • Cloud
      Cover
      54%
    • Precip
      10%
    • Hours of Precip
      0
    more
  • Sat

    Sep 3

    76°Lo 61°

    Mostly sunny and windy

    Very Good for stargazing
    • Cloud
      Cover
      26%
    • Precip
      8%
    • Hours of Precip
      0
    more
  • Sun

    Sep 4

    76°Lo 61°

    Mostly cloudy and breezy

    Excellent for stargazing
    • Cloud
      Cover
      76%
    • Precip
      8%
    • Hours of Precip
      0
    more
Next Previous
Hi 79° RealFeel® 84° Precipitation 60%

Day

N

E

S

W

  • WNW 5 mph
  • Gusts: 7 mph

Mostly cloudy and humid with a couple of showers, mainly early in the day

  • Max UV Index: 3 (Moderate)
  • Thunderstorms: 22%
  • Precipitation: 0.05 in
  • Rain: 0.05 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs
Lo 65° RealFeel® 63° Precipitation 21%

Night

N

E

S

W

  • NNW 7 mph
  • Gusts: 13 mph

Partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 4%
  • 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 1

more Historical Weather Data >
  Today Normal Record 9/1/2015
High 79° 78° 93° (2010) 87°
Low 65° 63° 49° (1991) 71°

Solunar Information for Holtsville, NY

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:20 AM with 13:03 of sunlight, then sets at 7:23 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 6:28 AM with 13:09 of moolight, then sets at 7:37 PM

Thu, Sep 1
New
Fri, Sep 9
First
Fri, Sep 16
Full
Fri, Sep 23
Last

Holtsville Weather Report

Warm fall may jeopardize foliage displays in northeastern US

August 31, 2016; 8:49 AM ET

Though the summer season is winding down, forecasters are predicting a warm start to fall across the Northeast — a weather pattern that could spell bad news for fall foliage lovers. more >

'Frankenfish' Ready for Market

Dec 7, 2012; 7:08 AM ET A new lab-created meat is waiting for FDA approval that is at once very different and just the same as your favorite fish dinner.

Thu. Stargazing