Hourly Weather Forecast - Port Jefferson, NY

12 AM
26°F
0%
16mph
W
Partly Cloudy
Humidity
60%
Feels like
14°F
Dew Point
14°F
1 AM
25°F
0%
15mph
W
Partly Cloudy
Humidity
60%
Feels like
13°F
Dew Point
13°F
2 AM
24°F
0%
15mph
W
Mostly Cloudy
Humidity
60%
Feels like
12°F
Dew Point
13°F
3 AM
24°F
0%
14mph
W
Cloudy
Humidity
60%
Feels like
11°F
Dew Point
12°F
4 AM
23°F
0%
13mph
W
Cloudy
Humidity
60%
Feels like
11°F
Dew Point
11°F
5 AM
22°F
0%
13mph
W
Partly Cloudy
Humidity
61%
Feels like
10°F
Dew Point
11°F
6 AM
22°F
0%
13mph
W
Mostly Clear
Humidity
62%
Feels like
10°F
Dew Point
11°F
7 AM
22°F
0%
13mph
W
Clear
Humidity
61%
Feels like
10°F
Dew Point
11°F
7:12 AM
8 AM
22°F
0%
13mph
W
Sunny
Humidity
59%
Feels like
10°F
Dew Point
10°F
9 AM
23°F
0%
14mph
W
Mostly Sunny
Humidity
56%
Feels like
10°F
Dew Point
10°F
10 AM
24°F
0%
15mph
W
Partly Cloudy
Humidity
53%
Feels like
11°F
Dew Point
9°F
11 AM
24°F
0%
15mph
W
Mostly Sunny
Humidity
50%
Feels like
12°F
Dew Point
8°F
12 PM
24°F
0%
14mph
W
Mostly Sunny
Humidity
48%
Feels like
12°F
Dew Point
8°F
1 PM
25°F
0%
14mph
W
Partly Cloudy
Humidity
46%
Feels like
13°F
Dew Point
7°F
2 PM
24°F
0%
14mph
W
Partly Cloudy
Humidity
45%
Feels like
12°F
Dew Point
6°F
3 PM
24°F
0%
14mph
W
Mostly Sunny
Humidity
46%
Feels like
11°F
Dew Point
6°F
4 PM
23°F
0%
14mph
W
Mostly Sunny
Humidity
48%
Feels like
10°F
Dew Point
6°F
4:54 PM
5 PM
22°F
0%
14mph
W
Mostly Clear
Humidity
50%
Feels like
9°F
Dew Point
6°F
6 PM
21°F
0%
13mph
W
Clear
Humidity
52%
Feels like
9°F
Dew Point
6°F
7 PM
20°F
0%
12mph
W
Clear
Humidity
54%
Feels like
8°F
Dew Point
6°F
8 PM
20°F
0%
12mph
W
Clear
Humidity
53%
Feels like
8°F
Dew Point
5°F
9 PM
19°F
0%
12mph
W
Clear
Humidity
53%
Feels like
7°F
Dew Point
5°F
10 PM
19°F
0%
11mph
W
Clear
Humidity
54%
Feels like
7°F
Dew Point
5°F
11 PM
18°F
0%
11mph
W
Clear
Humidity
55%
Feels like
6°F
Dew Point
5°F

Snow Forecast through Sunday

Unrelenting Storm Track Brings Snow to Great Lakes & Northeast

A couple low pressure systems will produce additional snowfall across the Great Lakes, Upper Midwest, and Northeast this weekend into the upcoming week.

Weekend Weather Outlook

Weekend Weather Outlook

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

Vehicle driving in wintry conditions

Prepare Your Car for Cold Weather

(Image provided by NOAA)

Polar Vortex: What Is It?

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

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