Hourly Weather Forecast - Port Jefferson, NY

9 AM
23°F
0%
7mph
NNE
Partly Cloudy
Humidity
45%
Feels like
15°F
Dew Point
5°F
10 AM
25°F
0%
6mph
NE
Partly Cloudy
Humidity
43%
Feels like
18°F
Dew Point
5°F
11 AM
26°F
0%
4mph
NE
Partly Cloudy
Humidity
39%
Feels like
21°F
Dew Point
5°F
12 PM
28°F
0%
3mph
NE
Mostly Cloudy
Humidity
37%
Feels like
28°F
Dew Point
5°F
1 PM
29°F
0%
2mph
NE
Mostly Cloudy
Humidity
35%
Feels like
29°F
Dew Point
5°F
2 PM
30°F
0%
1mph
NE
Mostly Cloudy
Humidity
34%
Feels like
30°F
Dew Point
5°F
3 PM
30°F
0%
1mph
ENE
Partly Cloudy
Humidity
35%
Feels like
30°F
Dew Point
6°F
4 PM
29°F
0%
1mph
SE
Mostly Sunny
Humidity
39%
Feels like
29°F
Dew Point
7°F
5 PM
28°F
0%
1mph
SSE
Mostly Sunny
Humidity
43%
Feels like
28°F
Dew Point
9°F
5:44 PM
6 PM
27°F
0%
2mph
S
Clear
Humidity
49%
Feels like
27°F
Dew Point
10°F
7 PM
26°F
0%
3mph
S
Clear
Humidity
54%
Feels like
26°F
Dew Point
11°F
8 PM
25°F
0%
3mph
SSE
Clear
Humidity
60%
Feels like
21°F
Dew Point
13°F
9 PM
24°F
0%
3mph
SSE
Clear
Humidity
64%
Feels like
20°F
Dew Point
14°F
10 PM
24°F
0%
3mph
SE
Clear
Humidity
67%
Feels like
24°F
Dew Point
15°F
11 PM
24°F
0%
3mph
SE
Mostly Clear
Humidity
69%
Feels like
24°F
Dew Point
15°F

Snow and Ice Accumulations through Tuesday

Wintry Disturbance Hits Northeastern U.S.

A wintry disturbance will continue northeastward, buffeting the northeastern U.S. with light snow, freezing rain, and plain rain through Tuesday night.

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for February 26, 2026

Widespread Drought Degradation For South, Southeast; Mixed Results Elsewhere

Debris flies through the air as howling winds accompanied by a line of storms approach the old Tarrant County Courthouse in downtown Fort Worth, Texas, on March 2, 2023. (Tom Fox/The Dallas Morning News via AP)

Lightning Season Rapidly Approaching: Best Safety Practices

Rocky Mountain National Park at day in December. (NPS Natural Resources/Wikimedia Commons)

Snowmelt and Flooding

U.S. Route 52 near St. Donatus between Bellevue and Dubuque, Iowa. (Tony Webster from Portland, Oregon)

Winter Weather Driving Safety Tips

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