Hourly Weather Forecast - Holtsville, NY

12 AM
28°F
0%
15mph
WNW
Partly Cloudy
Humidity
53%
Feels like
16°F
Dew Point
13°F
1 AM
27°F
0%
14mph
WNW
Partly Cloudy
Humidity
53%
Feels like
15°F
Dew Point
12°F
2 AM
26°F
0%
13mph
WNW
Partly Cloudy
Humidity
54%
Feels like
15°F
Dew Point
12°F
3 AM
25°F
0%
12mph
WNW
Mostly Clear
Humidity
55%
Feels like
14°F
Dew Point
11°F
4 AM
24°F
0%
11mph
WNW
Mostly Clear
Humidity
57%
Feels like
13°F
Dew Point
11°F
5 AM
24°F
0%
11mph
WNW
Clear
Humidity
58%
Feels like
13°F
Dew Point
11°F
6 AM
24°F
0%
10mph
WNW
Clear
Humidity
58%
Feels like
13°F
Dew Point
11°F
7 AM
25°F
0%
10mph
WNW
Clear
Humidity
56%
Feels like
15°F
Dew Point
11°F
7:12 AM
8 AM
27°F
0%
10mph
WNW
Sunny
Humidity
52%
Feels like
18°F
Dew Point
12°F
9 AM
30°F
0%
10mph
WNW
Sunny
Humidity
48%
Feels like
21°F
Dew Point
13°F
10 AM
32°F
10%
10mph
WNW
Sunny
Humidity
45%
Feels like
24°F
Dew Point
13°F
11 AM
34°F
10%
10mph
W
Sunny
Humidity
45%
Feels like
26°F
Dew Point
15°F
12 PM
35°F
20%
11mph
WSW
Sunny
Humidity
46%
Feels like
27°F
Dew Point
16°F
1 PM
35°F
10%
11mph
WSW
Sunny
Humidity
47%
Feels like
27°F
Dew Point
17°F
2 PM
35°F
10%
11mph
WSW
Mostly Sunny
Humidity
49%
Feels like
27°F
Dew Point
18°F
3 PM
35°F
10%
11mph
SW
Partly Cloudy
Humidity
52%
Feels like
27°F
Dew Point
19°F
4 PM
35°F
10%
11mph
SW
Mostly Cloudy
Humidity
55%
Feels like
27°F
Dew Point
20°F
4:27 PM
5 PM
34°F
10%
11mph
SW
Mostly Cloudy
Humidity
58%
Feels like
26°F
Dew Point
21°F
6 PM
34°F
10%
11mph
SW
Mostly Cloudy
Humidity
62%
Feels like
26°F
Dew Point
22°F
7 PM
34°F
10%
12mph
SW
Mostly Cloudy
Humidity
63%
Feels like
25°F
Dew Point
23°F
8 PM
34°F
10%
13mph
SW
Cloudy
Humidity
66%
Feels like
25°F
Dew Point
24°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Monday's Weather Outlook

Monday's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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