Hourly Weather Forecast - Holtsville, NY

12 AM
32°F
30%
9mph
WSW
30% Chance Snow Showers
Humidity
90%
Feels like
24°F
Dew Point
29°F
1 AM
31°F
10%
9mph
WSW
Partly Cloudy
Humidity
93%
Feels like
23°F
Dew Point
29°F
2 AM
31°F
10%
9mph
W
Hazy
Humidity
92%
Feels like
22°F
Dew Point
29°F
3 AM
30°F
10%
9mph
W
Partly Cloudy
Humidity
90%
Feels like
22°F
Dew Point
28°F
4 AM
29°F
10%
9mph
W
Cloudy
Humidity
89%
Feels like
21°F
Dew Point
27°F
5 AM
29°F
30%
9mph
W
30% Chance of Flurries
Humidity
87%
Feels like
20°F
Dew Point
26°F
6 AM
29°F
30%
10mph
W
30% Chance of Flurries
Humidity
90%
Feels like
20°F
Dew Point
26°F
7 AM
30°F
30%
10mph
W
30% Chance of Flurries
Humidity
83%
Feels like
22°F
Dew Point
26°F
7:13 AM
8 AM
32°F
30%
12mph
W
30% Chance of Flurries
Humidity
89%
Feels like
23°F
Dew Point
29°F
9 AM
35°F
10%
12mph
W
Mostly Cloudy
Humidity
79%
Feels like
26°F
Dew Point
29°F
10 AM
36°F
10%
12mph
W
Mostly Cloudy
Humidity
74%
Feels like
27°F
Dew Point
28°F
11 AM
36°F
10%
12mph
W
Cloudy
Humidity
69%
Feels like
28°F
Dew Point
27°F
12 PM
36°F
10%
12mph
W
Cloudy
Humidity
63%
Feels like
28°F
Dew Point
25°F
1 PM
36°F
10%
11mph
W
Cloudy
Humidity
62%
Feels like
28°F
Dew Point
24°F
2 PM
35°F
10%
11mph
W
Cloudy
Humidity
61%
Feels like
27°F
Dew Point
23°F
3 PM
34°F
10%
10mph
W
Cloudy
Humidity
61%
Feels like
26°F
Dew Point
22°F
4 PM
33°F
10%
10mph
W
Cloudy
Humidity
60%
Feels like
25°F
Dew Point
20°F
4:52 PM
5 PM
31°F
10%
10mph
W
Cloudy
Humidity
58%
Feels like
23°F
Dew Point
18°F
6 PM
30°F
10%
10mph
W
Cloudy
Humidity
54%
Feels like
22°F
Dew Point
16°F
7 PM
30°F
10%
10mph
W
Cloudy
Humidity
52%
Feels like
21°F
Dew Point
14°F
8 PM
29°F
10%
11mph
W
Cloudy
Humidity
50%
Feels like
20°F
Dew Point
13°F
9 PM
29°F
10%
11mph
W
Cloudy
Humidity
50%
Feels like
19°F
Dew Point
13°F
10 PM
28°F
30%
12mph
W
30% Chance of Flurries
Humidity
50%
Feels like
18°F
Dew Point
12°F
11 PM
27°F
30%
12mph
W
30% Chance of Snow
Humidity
49%
Feels like
16°F
Dew Point
11°F

Tuesday's Weather Outlook

Today's Weather Outlook

Rain and snow showers will sweep through the Great Lakes as the Western U.S. begins a pattern of quiet and dry weather.

(Image provided by NOAA)

Polar Vortex: What Is It?

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

(Image provided by Pixabay.com)

Before a High Wind Event

Windchill chart

Dangers of Wind Chills

A snow-covered trail in Sparkill, N.Y. (H. Martinez, WeatherBug user)

Top Winter Hiking Destinations

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide