• Early AM

    Aug 30

    Lo 65°

    Mainly clear

    Outdoor Concert Weather
    • Hi
      RealFeel
      91°
    • Precip
      8%
    • Wind
      Speed
      6 mph
    more
  • Today

    Aug 30

    82°Lo 67°

    Sunny and pleasant

    Excellent for an outdoor concert
    • Hi
      RealFeel
      87°
    • Precip
      11%
    • Wind
      Speed
      5 mph
    more
  • Wed

    Aug 31

    84°Lo 67°

    Partly sunny and humid

    Excellent for an outdoor concert
    • Hi
      RealFeel
      92°
    • Precip
      60%
    • Wind
      Speed
      5 mph
    more
  • Thu

    Sep 1

    79°Lo 65°

    A couple of morning showers

    Very Good for an outdoor concert
    • Hi
      RealFeel
      85°
    • Precip
      25%
    • Wind
      Speed
      6 mph
  • Fri

    Sep 2

    79°Lo 63°

    Some sun; breezy, less humid

    Fair for an outdoor concert
    • Hi
      RealFeel
      79°
    • Precip
      19%
    • Wind
      Speed
      5 mph
    more
Next Previous
Hi 79° RealFeel® 85° Precipitation 60%

Day

N

E

S

W

  • E 5 mph
  • Gusts: 8 mph

A couple of showers in the morning; otherwise, humid with clouds breaking for some sun

  • Max UV Index: 5 (Moderate)
  • Thunderstorms: 20%
  • Precipitation: 0.04 in
  • Rain: 0.04 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs
Lo 65° RealFeel® 62° Precipitation 25%

Night

N

E

S

W

  • N 6 mph
  • Gusts: 12 mph

Partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 20%
  • 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°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:19 AM with 13:06 of sunlight, then sets at 7:25 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 5:28 AM with 13:37 of moolight, then sets at 7:05 PM

Holtsville Weather Report

September to start on cooler, less humid note in northeastern US

August 29, 2016; 7:44 PM ET

Brief relief from heat and humidity will arrive in the northeastern United States during the first days of September. more >