Hourly Weather Forecast - Holtsville, NY

12 AM
19°F
0%
18mph
NNW
Clear
Humidity
55%
Feels like
3°F
Dew Point
5°F
1 AM
18°F
0%
18mph
NNW
Mostly Clear
Humidity
55%
Feels like
2°F
Dew Point
4°F
2 AM
17°F
0%
17mph
NW
Clear
Humidity
57%
Feels like
1°F
Dew Point
4°F
3 AM
16°F
0%
17mph
NW
Clear
Humidity
59%
Feels like
1°F
Dew Point
5°F
4 AM
16°F
0%
16mph
NW
Clear
Humidity
60%
Feels like
1°F
Dew Point
5°F
5 AM
17°F
0%
15mph
NW
Clear
Humidity
62%
Feels like
2°F
Dew Point
6°F
6 AM
17°F
0%
14mph
NW
Clear
Humidity
62%
Feels like
3°F
Dew Point
7°F
7 AM
19°F
0%
14mph
NW
Clear
Humidity
61%
Feels like
6°F
Dew Point
8°F
7:09 AM
8 AM
21°F
0%
13mph
NW
Mostly Sunny
Humidity
59%
Feels like
8°F
Dew Point
9°F
9 AM
23°F
0%
13mph
NW
Mostly Sunny
Humidity
56%
Feels like
11°F
Dew Point
10°F
10 AM
25°F
0%
13mph
NW
Partly Cloudy
Humidity
54%
Feels like
13°F
Dew Point
11°F
11 AM
27°F
0%
13mph
NW
Mostly Sunny
Humidity
53%
Feels like
15°F
Dew Point
12°F
12 PM
28°F
0%
14mph
WNW
Mostly Sunny
Humidity
51%
Feels like
17°F
Dew Point
12°F
1 PM
29°F
0%
14mph
WNW
Mostly Sunny
Humidity
51%
Feels like
17°F
Dew Point
13°F
2 PM
29°F
0%
14mph
WNW
Mostly Sunny
Humidity
52%
Feels like
18°F
Dew Point
13°F
3 PM
28°F
10%
13mph
W
Partly Cloudy
Humidity
54%
Feels like
18°F
Dew Point
14°F
4 PM
28°F
10%
12mph
W
Partly Cloudy
Humidity
57%
Feels like
17°F
Dew Point
15°F
4:25 PM
5 PM
27°F
10%
11mph
W
Partly Cloudy
Humidity
60%
Feels like
17°F
Dew Point
15°F
6 PM
27°F
10%
11mph
W
Mostly Cloudy
Humidity
62%
Feels like
17°F
Dew Point
15°F
7 PM
26°F
10%
11mph
W
Mostly Cloudy
Humidity
64%
Feels like
16°F
Dew Point
16°F
8 PM
26°F
10%
11mph
W
Mostly Cloudy
Humidity
67%
Feels like
16°F
Dew Point
16°F
9 PM
26°F
10%
11mph
W
Cloudy
Humidity
69%
Feels like
15°F
Dew Point
17°F
10 PM
25°F
10%
11mph
W
Cloudy
Humidity
72%
Feels like
15°F
Dew Point
17°F
11 PM
25°F
0%
11mph
W
Cloudy
Humidity
72%
Feels like
14°F
Dew Point
17°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

Sunday Weather Outlook

Today'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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