Hourly Weather Forecast - Holtsville, NY

12 AM
41°F
20%
12mph
SSW
Cloudy
Humidity
88%
Feels like
35°F
Dew Point
38°F
1 AM
41°F
20%
11mph
SSW
Cloudy
Humidity
91%
Feels like
34°F
Dew Point
39°F
2 AM
41°F
20%
11mph
SSW
Cloudy
Humidity
95%
Feels like
34°F
Dew Point
39°F
3 AM
41°F
20%
10mph
SSW
Cloudy
Humidity
97%
Feels like
34°F
Dew Point
40°F
4 AM
40°F
20%
10mph
SW
Cloudy
Humidity
98%
Feels like
34°F
Dew Point
40°F
5 AM
40°F
20%
10mph
SW
Foggy
Humidity
100%
Feels like
34°F
Dew Point
40°F
6 AM
41°F
20%
10mph
SW
Foggy
Humidity
99%
Feels like
35°F
Dew Point
40°F
6:46 AM
7 AM
41°F
10%
9mph
SW
Cloudy
Humidity
97%
Feels like
36°F
Dew Point
41°F
8 AM
44°F
10%
9mph
SW
Mostly Cloudy
Humidity
92%
Feels like
39°F
Dew Point
42°F
9 AM
47°F
10%
9mph
SW
Partly Cloudy
Humidity
84%
Feels like
42°F
Dew Point
42°F
10 AM
49°F
10%
9mph
SSW
Partly Cloudy
Humidity
76%
Feels like
45°F
Dew Point
42°F
11 AM
51°F
0%
9mph
SSW
Partly Cloudy
Humidity
71%
Feels like
51°F
Dew Point
42°F
12 PM
53°F
0%
10mph
SSW
Mostly Sunny
Humidity
67%
Feels like
53°F
Dew Point
42°F
1 PM
54°F
0%
10mph
S
Partly Cloudy
Humidity
65%
Feels like
54°F
Dew Point
43°F
2 PM
55°F
0%
11mph
S
Partly Cloudy
Humidity
65%
Feels like
55°F
Dew Point
43°F
3 PM
54°F
0%
11mph
S
Mostly Cloudy
Humidity
67%
Feels like
54°F
Dew Point
43°F
4 PM
53°F
0%
11mph
S
Cloudy
Humidity
69%
Feels like
53°F
Dew Point
43°F
5 PM
51°F
0%
11mph
S
Cloudy
Humidity
73%
Feels like
51°F
Dew Point
42°F
6 PM
49°F
30%
11mph
S
30% Chance of Light Rain
Humidity
78%
Feels like
44°F
Dew Point
42°F
7 PM
48°F
30%
11mph
S
30% Chance of Light Rain
Humidity
82%
Feels like
43°F
Dew Point
43°F
7:10 PM
8 PM
47°F
30%
11mph
S
30% Chance of Light Rain
Humidity
86%
Feels like
42°F
Dew Point
43°F
9 PM
47°F
30%
11mph
S
30% Chance of Light Rain
Humidity
88%
Feels like
42°F
Dew Point
44°F
10 PM
47°F
20%
12mph
S
Cloudy
Humidity
89%
Feels like
42°F
Dew Point
44°F
11 PM
48°F
30%
13mph
SSW
30% Chance of Rain
Humidity
89%
Feels like
42°F
Dew Point
45°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.

Today'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

(Image provided by Pixabay.com)

Lightning Safety

A tree knocked over after a storm produced high winds. (provided by PublicDomainPictures via Pixabay.com)

Strong Winds in the Springtime

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