• Early AM

    Jul 26

    Lo 72°

    Partly cloudy

    Ragweed Pollen Weather
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
    more
  • Today

    Jul 26

    91°Lo 67°

    Mostly sunny; hot, less humid

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
  • Wed

    Jul 27

    88°Lo 68°

    Mostly sunny and humid

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
  • Thu

    Jul 28

    91°Lo 73°

    Humid with periods of sun

    Moderate ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      3 - Moderate
    • Tree
      Pollen
      1 - Low
    more
  • Fri

    Jul 29

    82°Lo 71°

    Partly sunny with a t-storm

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
Mainly clear 79° Lo 71° RealFeel® 80° / 73°

N

E

S

W

  • Precipitation: 16%
  • Rain: 0 in
  • Snow: 0 in
  • Humidity: 77%
  • Cloud Cover: 21%
  • Dew Point: 67° F
  • Visibility: 10 mi
5 mph

Temperature History - Jul 27

more Historical Weather Data >
  Today Normal Record 7/27/2015
High 88° 82° 94° (1999) 83°
Low 68° 66° 56° (2001) 74°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:44 AM with 14:28 of sunlight, then sets at 8:12 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 12:23 AM with 13:46 of moolight, then sets at 2:09 PM

Holtsville Weather Report

PHOTOS: Severe storms rip through Pennsylvania to New York with damaging winds

July 25, 2016; 11:47 PM ET

Severe thunderstorms rumbled through the Northeast on Monday, lashing the region with damaging winds while also unleashing heavy downpours that triggered flash flooding. more >

Wed. Pollen

Wed. Dust & Dander

Wed. Wind Maps