• Early AM

    Aug 28

    Lo 65°

    Mainly clear

    Migraine Headache Weather
    • Hi
      RealFeel
      89°
    • UV
      5 - High
    • Cloud
      Cover
      22%
    more
  • Today

    Aug 28

    83°Lo 66°

    Sunny much of the time

    Beneficial weather for migraines
    • Hi
      RealFeel
      90°
    • UV
      5 - High
    • Cloud
      Cover
      21%
    more
  • Mon

    Aug 29

    87°Lo 66°

    Partly sunny and humid

    Beneficial weather for migraines
    • Hi
      RealFeel
      92°
    • UV
      5 - High
    • Cloud
      Cover
      12%
  • Tue

    Aug 30

    82°Lo 67°

    Humid with plenty of sunshine

    Beneficial weather for migraines
    • Hi
      RealFeel
      91°
    • UV
      5 - High
    • Cloud
      Cover
      18%
    more
  • Wed

    Aug 31

    84°Lo 67°

    Partly sunny and humid

    Beneficial weather for migraines
    • Hi
      RealFeel
      92°
    • UV
      5 - High
    • Cloud
      Cover
      80%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Mon
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Mostly Sunny
Temp (°F) 76° 79° 82° 84° 85° 86° 87° 86°
RealFeel® 79° 83° 87° 91° 92° 92° 92° 89°
Humidity 74% 64% 59% 57% 53% 51% 50% 52%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
5%
 
5%
 
5%
 
5%
 
3%
 
0%
 
0%
 
0%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Wind (mph) 7 WSW 7 W 8 W 8 WNW 8 WNW 8 WNW 8 NW 8 NW
UV Index 2 3 5 6 6 6 5 3
Cloud Cover 26% 26% 26% 26% 26% 26% 26% 26%
Dew Point 67° 66° 66° 67° 67° 66° 66° 66°
Middle Grid line 90 F Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F

Temperature History - Aug 29

more Historical Weather Data >
  Today Normal Record 8/29/2015
High 87° 79° 91° (2010) 82°
Low 66° 64° 46° (1986) 59°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:17 AM with 13:11 of sunlight, then sets at 7:28 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:25 AM with 14:24 of moolight, then sets at 5:49 PM

Holtsville Weather Report

More summery days await the northeastern US into September

August 27, 2016; 9:25 PM ET

Summer heat has returned to the northeastern United States and will continue to dominate most days into September. more >

Mon. Migraine Headache

Mon. UV Index