• Early AM

    Jun 30

    Lo 64°

    Mainly clear

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

    Jun 30

    83°Lo 66°

    Sunny

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

    Jul 1

    79°Lo 65°

    Partly sunny with a t-storm

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

    Jul 2

    80°Lo 63°

    Mostly sunny

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

    Jul 3

    82°Lo 61°

    Mostly sunny

    Low ragweed pollen levels
    • Grass
      Pollen
      1 - Low
    • Ragweed
      Pollen
      1 - Low
    • Tree
      Pollen
      1 - Low
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
9am
10am 11am 12pm 1pm 2pm 3pm 4pm
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Forecast
Mostly Sunny
Sunny
Sunny
Sunny
Sunny
Sunny
Mostly Sunny
Partly Sunny
Temp (°F) 72° 74° 75° 76° 77° 78° 79° 80°
RealFeel® 75° 78° 80° 82° 82° 82° 82° 82°
Humidity 73% 68% 63% 58% 53% 49% 46% 43%
   
  9am 10am 11am 12pm 1pm 2pm 3pm 4pm
Rain
 
4%
 
4%
 
4%
 
4%
 
4%
 
4%
 
4%
 
4%
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 NW 8 NW 9 NW 9 NW 10 WNW 12 WNW 10 WNW 10 WNW
UV Index 3 5 6 8 8 7 6 5
Cloud Cover 14% 8% 1% 0% 0% 3% 21% 40%
Dew Point 63° 62° 62° 61° 59° 58° 57° 56°
Middle Grid line 85 F Middle Grid line 80 F Middle Grid line 75 F Middle Grid line 70 F

Temperature History - Jul 2

more Historical Weather Data >
  Today Normal Record 7/2/2015
High 80° 81° 90° (2002) 79°
Low 63° 65° 54° (1988) 63°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:25 AM with 15:02 of sunlight, then sets at 8:27 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 3:53 AM with 14:41 of moolight, then sets at 6:34 PM

Holtsville Weather Report

Dry weather to dominate July Fourth weekend from Chicago to NYC, Boston

June 30, 2016; 12:43 AM ET

While downpours could come calling at the start and finish of the July Fourth weekend in the northeastern United States, the vast majority of the time will be dry. more >

Sat. Dust & Dander

Sat. Wind Maps