• Today

    Jul 29

    80°Lo 68°

    Not as warm with clearing

    Beneficial weather for migraines
    • Hi
      RealFeel
      84°
    • UV
      4 - Moderate
    • Cloud
      Cover
      81%
  • Sat

    Jul 30

    83°Lo 71°

    Humid with clouds and sun

    Beneficial weather for migraines
    • Hi
      RealFeel
      94°
    • UV
      5 - High
    • Cloud
      Cover
      69%
    more
  • Sun

    Jul 31

    78°Lo 71°

    Mostly cloudy with a t-storm

    Beneficial weather for migraines
    • Hi
      RealFeel
      85°
    • UV
      4 - Moderate
    • Cloud
      Cover
      93%
    more
  • Mon

    Aug 1

    80°Lo 68°

    Mostly cloudy and humid

    Beneficial weather for migraines
    • Hi
      RealFeel
      87°
    • UV
      4 - Moderate
    • Cloud
      Cover
      76%
    more
  • Tue

    Aug 2

    80°Lo 65°

    A thunderstorm in the area

    Beneficial weather for migraines
    • Hi
      RealFeel
      85°
    • UV
      4 - Moderate
    • Cloud
      Cover
      69%
    more
Next Previous
Cloudy 73° RealFeel® 74°

N

E

S

W

  • Humidity: 92%
  • Pressure: 29.83 in
  • UV Index: 2
  • Cloud Cover: 100%
  • Ceiling: 2860 ft
  • Dew Point: 70° F
  • Visibility: 10 mi
11 mph

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:46 AM with 14:24 of sunlight, then sets at 8:10 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:48 AM with 14:34 of moolight, then sets at 4:22 PM

Temperature Summary - 1:24 PM

  Temp (°F)
Now 73°
Yesterday 58°
RealFeel® 74°
RealFeel® Shade 74°
Wind Chill 73°
Dew Point 70°
  Hi / Lo
Previous 6 Hours 74°
  68°
Previous 12 Hours 78°
  68°
Previous 24 Hours 89°
  68°

Temperature History - Jul 29

more Historical Weather Data >
  Today Normal Record 7/29/2015
High 80° 82° 96° (2002) 92°
Low 68° 66° 58° (1984) 71°

Precipitation Summary - 1:24 PM

  Amount (in)
Previous 1 Hour 0
Previous 3 Hours 0.05
Previous 6 Hours 0.51
Previous 9 Hours 0.62
Previous 12 Hours 0.71
Previous 18 Hours 0.77
Previous 24 Hours 0.77

Holtsville Weather Report

Soaking storms to elevate flash flood threat in northeastern US this weekend

July 29, 2016; 11:10 AM ET

Rounds of drenching showers and heavy thunderstorms will heighten the risk of flash flooding across the northeastern United States through the final weekend of July. more >

Fri. Migraine Headache

Fri. UV Index