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10-Day Weather Forecast for Holtsville, New York - The Weather Channel | weather.com
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10 Day Weather-

As of 1:54 pm EDT
alertLevel3

Gale Watch

+1 More

Today

Cloudy Cloudy
41°/39°
Rain drop 15%
Subtract

Day

41°
Cloudy
Rain drop
15%
SSW 17 mph

Cloudy skies. Slight chance of a rain shower. High 41F. Winds SSW at 10 to 20 mph.

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  • Humidity
    Humidity47%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise7:07 am
  • Sunset
    Sunset6:56 pm

Night

39°
Partly Cloudy Night
Mixed precipitation
15%
SSW 19 mph

Cloudy early with some clearing expected late. Slight chance of a rain shower. Low 39F. Winds SSW at 15 to 25 mph.

  • Humidity
    Humidity65%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:17 am
  • Moonset
    Moonset1:09 pm
  • Moon Phase - Day 24 Waning Crescent

Sat 14

Windy Partly Cloudy/Wind
49°/31°
Rain drop 1%
Add

Day

49°
Windy
Rain drop
1%
W 21 mph

Partly cloudy and windy. High 49F. Winds W at 20 to 30 mph. Higher wind gusts possible.

  • Humidity
    Humidity36%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise7:05 am
  • Sunset
    Sunset6:57 pm

Night

31°
Mostly Clear Night
Mixed precipitation
2%
NNW 13 mph

Partly cloudy. Low 31F. Winds NNW at 10 to 15 mph.

  • Humidity
    Humidity49%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise4:55 am
  • Moonset
    Moonset2:14 pm
  • Moon Phase - Day 25 Waning Crescent

Sun 15

Cloudy Cloudy
43°/40°
Rain drop 3%
Add

Day

43°
Cloudy
Rain drop
3%
E 13 mph

Cloudy skies. High 43F. Winds E at 10 to 20 mph.

  • Humidity
    Humidity56%
  • UV index
    UV Index3 of 11
  • Sunrise
    Sunrise7:03 am
  • Sunset
    Sunset6:59 pm

Night

40°
Rain
Rain drop
83%
ESE 16 mph

Cloudy skies with periods of rain after midnight. Low near 40F. Winds ESE at 10 to 20 mph. Chance of rain 80%.

  • Humidity
    Humidity81%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:27 am
  • Moonset
    Moonset3:23 pm
  • Moon Phase - Day 26 Waning Crescent

Mon 16

Rain Rain/Wind
55°/34°
Rain drop 96%
Add

Day

55°
Rain
Rain drop
96%
S 24 mph

Windy with rain likely. High around 55F. Winds S at 20 to 30 mph. Chance of rain 100%. Rainfall around a half an inch. Winds could occasionally gust over 40 mph.

  • Humidity
    Humidity92%
  • UV index
    UV Index2 of 11
  • Sunrise
    Sunrise7:02 am
  • Sunset
    Sunset7:00 pm

Night

34°
Rain
Rain drop
97%
SW 23 mph

Windy at times with rain likely. Low 34F. Winds SW at 20 to 30 mph. Chance of rain 100%. Rainfall around a half an inch.

  • Humidity
    Humidity90%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise5:54 am
  • Moonset
    Moonset4:32 pm
  • Moon Phase - Day 27 Waning Crescent

Tue 17

Partly Cloudy Day Partly Cloudy
40°/25°
Rain drop 23%
Add

Day

40°
Partly Cloudy Day
Mixed precipitation
23%
W 20 mph

Intervals of clouds and sunshine. Cold. High near 40F. Winds W at 15 to 25 mph.

  • Humidity
    Humidity45%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise7:00 am
  • Sunset
    Sunset7:01 pm

Night

25°
Partly Cloudy Night
Snowflake
2%
WNW 15 mph

A few clouds from time to time. Low around 25F. Winds WNW at 10 to 20 mph.

  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:18 am
  • Moonset
    Moonset5:42 pm
  • Moon Phase - Day 28 Waning Crescent

Wed 18

Mostly Clear Day Mostly Sunny
36°/32°
Rain drop 0%
Add

Day

36°
Mostly Clear Day
W 9 mph

Generally sunny despite a few afternoon clouds. High 36F. Winds W at 5 to 10 mph.

  • Humidity
    Humidity39%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:58 am
  • Sunset
    Sunset7:02 pm

Night

32°
Mostly Cloudy Night
Mixed precipitation
2%
S 6 mph

Mostly cloudy. Low 32F. Winds S at 5 to 10 mph.

  • Humidity
    Humidity59%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise6:41 am
  • Moonset
    Moonset6:53 pm
  • Moon Phase - Day 29 New Moon

Thu 19

Partly Cloudy Day Partly Cloudy
44°/34°
Rain drop 4%
Add

Day

44°
Partly Cloudy Day
Rain drop
4%
SSE 9 mph

Sunshine and clouds mixed. High 44F. Winds SSE at 5 to 10 mph.

  • Humidity
    Humidity59%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:57 am
  • Sunset
    Sunset7:03 pm

Night

34°
Partly Cloudy Night
Mixed precipitation
11%
SW 5 mph

Partly cloudy. Low 34F. Winds light and variable.

  • Humidity
    Humidity76%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:04 am
  • Moonset
    Moonset8:05 pm
  • Moon Phase - Day 0 New Moon

Fri 20

Partly Cloudy Day Partly Cloudy
45°/33°
Rain drop 12%
Add

Day

45°
Partly Cloudy Day
Rain drop
12%
WNW 9 mph

Partly cloudy skies in the morning will give way to cloudy skies during the afternoon. High around 45F. Winds WNW at 5 to 10 mph.

  • Humidity
    Humidity65%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:55 am
  • Sunset
    Sunset7:04 pm

Night

33°
Mostly Cloudy Night
Mixed precipitation
24%
NW 8 mph

Considerable cloudiness. Low 33F. Winds NW at 5 to 10 mph.

  • Humidity
    Humidity71%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:28 am
  • Moonset
    Moonset9:21 pm
  • Moon Phase - Day 2 Waxing Crescent

Sat 21

Partly Cloudy Day Partly Cloudy
45°/32°
Rain drop 16%
Add

Day

45°
Partly Cloudy Day
Rain drop
16%
WNW 11 mph

Sunshine and clouds mixed. High near 45F. Winds WNW at 10 to 15 mph.

  • Humidity
    Humidity56%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:53 am
  • Sunset
    Sunset7:05 pm

Night

32°
Partly Cloudy Night
Mixed precipitation
24%
WNW 10 mph

Partly cloudy early with increasing clouds overnight. Low 32F. Winds WNW at 5 to 10 mph.

  • Humidity
    Humidity65%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise7:55 am
  • Moonset
    Moonset10:38 pm
  • Moon Phase - Day 3 Waxing Crescent

Sun 22

Partly Cloudy Day Partly Cloudy
43°/29°
Rain drop 14%
Add

Day

43°
Partly Cloudy Day
Rain drop
14%
NW 15 mph

Partly cloudy skies. High 43F. Winds NW at 10 to 20 mph.

  • Humidity
    Humidity49%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:52 am
  • Sunset
    Sunset7:06 pm

Night

29°
Partly Cloudy Night
Mixed precipitation
11%
NNW 11 mph

A few clouds. Low 29F. Winds NNW at 10 to 15 mph.

  • Humidity
    Humidity56%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise8:28 am
  • Moonset
    Moonset11:57 pm
  • Moon Phase - Day 4 Waxing Crescent

Mon 23

Partly Cloudy Day Partly Cloudy
45°/35°
Rain drop 11%
Add

Day

45°
Partly Cloudy Day
Rain drop
11%
NW 12 mph

Sunshine and clouds mixed. High near 45F. Winds NW at 10 to 15 mph.

  • Humidity
    Humidity52%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:50 am
  • Sunset
    Sunset7:07 pm

Night

35°
Partly Cloudy Night
Mixed precipitation
23%
NW 9 mph

A few clouds from time to time. Low near 35F. Winds NW at 5 to 10 mph.

  • Humidity
    Humidity67%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise9:09 am
  • Moonset
    Moonset--
  • Moon Phase - Day 5 Waxing Crescent

Tue 24

Partly Cloudy Day Partly Cloudy
45°/33°
Rain drop 23%
Add

Day

45°
Partly Cloudy Day
Rain drop
23%
NW 12 mph

Intervals of clouds and sunshine. High near 45F. Winds NW at 10 to 15 mph.

  • Humidity
    Humidity57%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:48 am
  • Sunset
    Sunset7:08 pm

Night

33°
Partly Cloudy Night
Mixed precipitation
14%
NNW 9 mph

A few clouds. Low 33F. Winds NNW at 5 to 10 mph.

  • Humidity
    Humidity64%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise10:00 am
  • Moonset
    Moonset1:13 am
  • Moon Phase - Day 6 Waxing Crescent

Wed 25

Partly Cloudy Day Partly Cloudy
44°/33°
Rain drop 14%
Add

Day

44°
Partly Cloudy Day
Rain drop
14%
NNW 11 mph

Sunshine and clouds mixed. High 44F. Winds NNW at 10 to 15 mph.

  • Humidity
    Humidity59%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:47 am
  • Sunset
    Sunset7:09 pm

Night

33°
Partly Cloudy Night
Mixed precipitation
24%
N 9 mph

Partly cloudy skies. Low 33F. Winds N at 5 to 10 mph.

  • Humidity
    Humidity65%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise11:02 am
  • Moonset
    Moonset2:20 am
  • Moon Phase - Day 7 First Quarter

Thu 26

Mostly Cloudy Day Mostly Cloudy
45°/35°
Rain drop 24%
Add

Day

45°
Mostly Cloudy Day
Rain drop
24%
WNW 10 mph

Mainly cloudy. High near 45F. NNW winds shifting to WSW at 10 to 15 mph.

  • Humidity
    Humidity60%
  • UV index
    UV Index4 of 11
  • Sunrise
    Sunrise6:45 am
  • Sunset
    Sunset7:10 pm

Night

35°
Mostly Cloudy Night
Mixed precipitation
24%
NNW 9 mph

Mainly cloudy. Low around 35F. Winds NNW at 5 to 10 mph.

  • Humidity
    Humidity75%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise12:12 pm
  • Moonset
    Moonset3:16 am
  • Moon Phase - Day 8 Waxing Gibbous

Fri 27

Partly Cloudy Day Partly Cloudy
48°/35°
Rain drop 24%
Add

Day

48°
Partly Cloudy Day
Rain drop
24%
N 11 mph

Partly to mostly cloudy. High 48F. Winds N at 10 to 15 mph.

  • Humidity
    Humidity68%
  • UV index
    UV Index5 of 11
  • Sunrise
    Sunrise6:43 am
  • Sunset
    Sunset7:11 pm

Night

35°
Scattered Showers Night
Rain drop
33%
NNE 8 mph

Mostly cloudy skies with a few showers late. Low around 35F. Winds NNE at 5 to 10 mph. Chance of rain 30%.

  • Humidity
    Humidity73%
  • UV index
    UV Index0 of 11
  • Moonrise
    Moonrise1:27 pm
  • Moonset
    Moonset4:01 am
  • Moon Phase - Day 9 Waxing Gibbous
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