Hourly Weather Forecast - Holtsville, NY

12 AM
36°F
10%
12mph
NNW
Clear
Humidity
57%
Feels like
28°F
Dew Point
22°F
1 AM
34°F
10%
12mph
N
Clear
Humidity
58%
Feels like
26°F
Dew Point
21°F
2 AM
33°F
10%
12mph
N
Clear
Humidity
59%
Feels like
24°F
Dew Point
20°F
3 AM
32°F
10%
11mph
N
Clear
Humidity
59%
Feels like
23°F
Dew Point
20°F
4 AM
32°F
10%
11mph
N
Clear
Humidity
59%
Feels like
23°F
Dew Point
19°F
5 AM
31°F
0%
11mph
N
Clear
Humidity
59%
Feels like
22°F
Dew Point
18°F
6 AM
31°F
0%
11mph
N
Mostly Clear
Humidity
57%
Feels like
22°F
Dew Point
18°F
6:42 AM
7 AM
31°F
0%
10mph
N
Partly Cloudy
Humidity
56%
Feels like
22°F
Dew Point
17°F
8 AM
32°F
0%
10mph
N
Mostly Cloudy
Humidity
53%
Feels like
24°F
Dew Point
17°F
9 AM
34°F
0%
10mph
N
Mostly Cloudy
Humidity
48%
Feels like
26°F
Dew Point
16°F
10 AM
36°F
0%
9mph
N
Mostly Cloudy
Humidity
43%
Feels like
29°F
Dew Point
15°F
11 AM
37°F
0%
8mph
NNW
Mostly Cloudy
Humidity
41%
Feels like
31°F
Dew Point
15°F
12 PM
38°F
0%
7mph
NNW
Mostly Cloudy
Humidity
39%
Feels like
33°F
Dew Point
15°F
1 PM
39°F
0%
6mph
NW
Cloudy
Humidity
39%
Feels like
34°F
Dew Point
16°F
2 PM
40°F
0%
6mph
WNW
Mostly Cloudy
Humidity
38%
Feels like
35°F
Dew Point
16°F
3 PM
41°F
0%
6mph
W
Mostly Cloudy
Humidity
37%
Feels like
36°F
Dew Point
16°F
4 PM
41°F
0%
7mph
W
Mostly Cloudy
Humidity
37%
Feels like
36°F
Dew Point
17°F
5 PM
40°F
0%
7mph
W
Partly Cloudy
Humidity
39%
Feels like
35°F
Dew Point
17°F

Today's Severe Weather Outlook

Dangerous Spring Storms Take Aim at Ohio Valley, Mid-Atlantic

Spring is here and Mother Nature is set to bring dangerous thunderstorms to parts of the Great Lakes, Ohio Valley and Mid-Atlantic.

Monday's High Temperature Outlook

Summer-Like Heat Bakes the Southern U.S.

Monday's Weather Outlook

Monday's Weather Outlook

Weekly Drought Map for March 19, 2026

Active Weather, Drought Improvements for Eastern Half; Drying Persists Elsewhere

Pile of hail after a hail storm hits Perth.

How Does Hail Form?

(Image provided by Pixabay.com)

Lightning Safety

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