Hourly Weather Forecast - Holtsville, NY

7 AM
43°F
0%
9mph
SSW
Mostly Cloudy
Humidity
70%
Feels like
37°F
Dew Point
34°F
7:15 AM
8 AM
44°F
10%
9mph
SSW
Cloudy
Humidity
69%
Feels like
39°F
Dew Point
35°F
9 AM
46°F
10%
9mph
SSW
Cloudy
Humidity
66%
Feels like
41°F
Dew Point
35°F
10 AM
47°F
10%
9mph
SSW
Cloudy
Humidity
65%
Feels like
43°F
Dew Point
36°F
11 AM
48°F
0%
9mph
SSW
Cloudy
Humidity
63%
Feels like
44°F
Dew Point
36°F
12 PM
48°F
0%
8mph
SSW
Cloudy
Humidity
62%
Feels like
44°F
Dew Point
36°F
1 PM
48°F
0%
7mph
SSW
Cloudy
Humidity
64%
Feels like
44°F
Dew Point
36°F
2 PM
47°F
0%
7mph
SSW
Cloudy
Humidity
67%
Feels like
44°F
Dew Point
37°F
3 PM
46°F
0%
7mph
S
Cloudy
Humidity
72%
Feels like
42°F
Dew Point
37°F
4 PM
44°F
0%
6mph
S
Cloudy
Humidity
77%
Feels like
41°F
Dew Point
38°F
4:48 PM
5 PM
43°F
10%
6mph
S
Cloudy
Humidity
82%
Feels like
40°F
Dew Point
38°F
6 PM
43°F
20%
6mph
S
Cloudy
Humidity
85%
Feels like
39°F
Dew Point
38°F
7 PM
42°F
30%
6mph
S
30% Chance of Light Rain
Humidity
86%
Feels like
39°F
Dew Point
38°F
8 PM
43°F
30%
7mph
S
30% Chance of Light Rain
Humidity
87%
Feels like
38°F
Dew Point
39°F
9 PM
43°F
30%
8mph
S
30% Chance of Light Rain
Humidity
87%
Feels like
38°F
Dew Point
40°F
10 PM
43°F
30%
9mph
S
30% Chance of Light Rain
Humidity
88%
Feels like
38°F
Dew Point
40°F
11 PM
43°F
20%
9mph
S
Mostly Cloudy
Humidity
87%
Feels like
38°F
Dew Point
40°F

Snow Forecast through Thursday PM

Clipper Storms Pepper the Great Lakes to New England

The Great Lakes, Appalachia, and the Northeast will see bouts of wintry weather today through the weekend.

Wednesday's Weather Outlook

Today's Weather Outlook

(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

Windchill chart

Dangers of Wind Chills

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

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