Hourly Weather Forecast - Port Jefferson, NY

12 AM
38°F
0%
9mph
SSW
Partly Cloudy
Humidity
75%
Feels like
32°F
Dew Point
31°F
1 AM
38°F
0%
8mph
SW
Mostly Cloudy
Humidity
75%
Feels like
32°F
Dew Point
31°F
2 AM
38°F
0%
8mph
SW
Cloudy
Humidity
77%
Feels like
32°F
Dew Point
31°F
3 AM
37°F
0%
7mph
SW
Cloudy
Humidity
77%
Feels like
31°F
Dew Point
31°F
4 AM
36°F
0%
7mph
SW
Mostly Cloudy
Humidity
78%
Feels like
31°F
Dew Point
30°F
5 AM
36°F
0%
7mph
SW
Partly Cloudy
Humidity
78%
Feels like
30°F
Dew Point
30°F
6 AM
36°F
0%
6mph
SW
Partly Cloudy
Humidity
80%
Feels like
31°F
Dew Point
30°F
6:47 AM
7 AM
37°F
0%
6mph
SW
Mostly Sunny
Humidity
79%
Feels like
32°F
Dew Point
31°F
8 AM
38°F
0%
6mph
SW
Mostly Sunny
Humidity
76%
Feels like
34°F
Dew Point
31°F
9 AM
41°F
0%
6mph
SW
Partly Cloudy
Humidity
70%
Feels like
37°F
Dew Point
32°F
10 AM
44°F
0%
6mph
SW
Partly Cloudy
Humidity
64%
Feels like
40°F
Dew Point
32°F
11 AM
46°F
0%
7mph
SW
Mostly Cloudy
Humidity
60%
Feels like
42°F
Dew Point
33°F
12 PM
47°F
0%
8mph
SSW
Mostly Cloudy
Humidity
57%
Feels like
44°F
Dew Point
33°F
1 PM
48°F
0%
9mph
SSW
Partly Cloudy
Humidity
54%
Feels like
44°F
Dew Point
33°F
2 PM
49°F
0%
11mph
SSW
Partly Cloudy
Humidity
54%
Feels like
44°F
Dew Point
33°F
3 PM
49°F
0%
11mph
SSW
Partly Cloudy
Humidity
55%
Feels like
44°F
Dew Point
33°F
4 PM
47°F
0%
12mph
SSW
Mostly Cloudy
Humidity
58%
Feels like
42°F
Dew Point
33°F
5 PM
46°F
0%
12mph
SSW
Cloudy
Humidity
62%
Feels like
40°F
Dew Point
34°F
6 PM
45°F
0%
12mph
SSW
Cloudy
Humidity
67%
Feels like
39°F
Dew Point
34°F
7 PM
44°F
0%
11mph
SSW
Cloudy
Humidity
71%
Feels like
38°F
Dew Point
35°F
7:09 PM
8 PM
44°F
10%
11mph
SSW
Cloudy
Humidity
74%
Feels like
38°F
Dew Point
36°F
9 PM
44°F
10%
10mph
SSW
Cloudy
Humidity
76%
Feels like
39°F
Dew Point
37°F
10 PM
44°F
10%
10mph
SSW
Cloudy
Humidity
77%
Feels like
39°F
Dew Point
38°F
11 PM
44°F
20%
9mph
SSW
Cloudy
Humidity
79%
Feels like
39°F
Dew Point
38°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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