Hourly Weather Forecast - Holtsville, NY

12 PM
29°F
0%
14mph
WSW
Sunny
Humidity
68%
Feels like
18°F
Dew Point
20°F
1 PM
29°F
0%
15mph
WSW
Mostly Sunny
Humidity
68%
Feels like
18°F
Dew Point
20°F
2 PM
30°F
0%
15mph
WSW
Mostly Sunny
Humidity
68%
Feels like
19°F
Dew Point
20°F
3 PM
30°F
0%
16mph
WSW
Mostly Sunny
Humidity
68%
Feels like
19°F
Dew Point
21°F
4 PM
30°F
0%
16mph
WSW
Partly Cloudy
Humidity
69%
Feels like
19°F
Dew Point
21°F
4:53 PM
5 PM
30°F
0%
15mph
WSW
Partly Cloudy
Humidity
69%
Feels like
19°F
Dew Point
21°F
6 PM
29°F
0%
14mph
WSW
Partly Cloudy
Humidity
71%
Feels like
19°F
Dew Point
21°F
7 PM
29°F
0%
14mph
WSW
Partly Cloudy
Humidity
71%
Feels like
18°F
Dew Point
21°F
8 PM
29°F
0%
15mph
WSW
Partly Cloudy
Humidity
68%
Feels like
18°F
Dew Point
20°F
9 PM
28°F
0%
16mph
WSW
Mostly Clear
Humidity
65%
Feels like
17°F
Dew Point
18°F
10 PM
28°F
0%
16mph
W
Mostly Clear
Humidity
62%
Feels like
16°F
Dew Point
17°F
11 PM
27°F
0%
16mph
W
Partly Cloudy
Humidity
61%
Feels like
15°F
Dew Point
15°F

Snow Forecast through Sunday

Series of Weather Systems Cover Great Lakes, East in Snow

Two main areas of low pressure will produce snow in the Upper Midwest, Great Lakes and Eastern U.S.

Monday's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

Vehicle driving in wintry conditions

Prepare Your Car for Cold 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

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