Hourly Weather Forecast - Port Jefferson, NY

12 AM
47°F
20%
9mph
SW
Foggy
Humidity
100%
Feels like
42°F
Dew Point
47°F
1 AM
47°F
30%
9mph
SW
30% Chance Rain Showers
Humidity
100%
Feels like
42°F
Dew Point
47°F
3 AM
47°F
40%
9mph
SW
40% Chance Rain Showers
Humidity
100%
Feels like
43°F
Dew Point
47°F
4 AM
47°F
40%
8mph
SW
40% Chance Rain Showers
Humidity
100%
Feels like
44°F
Dew Point
47°F
5 AM
48°F
40%
7mph
SW
40% Chance Rain Showers
Humidity
100%
Feels like
44°F
Dew Point
48°F
6 AM
48°F
30%
6mph
WSW
30% Chance Rain Showers
Humidity
100%
Feels like
45°F
Dew Point
48°F
6:15 AM
7 AM
49°F
20%
6mph
SW
Foggy
Humidity
100%
Feels like
46°F
Dew Point
49°F
8 AM
49°F
20%
5mph
SW
Partly Cloudy
Humidity
97%
Feels like
48°F
Dew Point
49°F
9 AM
51°F
20%
5mph
SW
Hazy
Humidity
93%
Feels like
51°F
Dew Point
49°F
10 AM
52°F
20%
5mph
SW
Mostly Sunny
Humidity
90%
Feels like
52°F
Dew Point
49°F
11 AM
53°F
10%
5mph
SW
Sunny
Humidity
87%
Feels like
53°F
Dew Point
50°F
12 PM
55°F
10%
5mph
SW
Sunny
Humidity
84%
Feels like
55°F
Dew Point
50°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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