Hourly Weather Forecast - Port Jefferson Station, NY

12 AM
29°F
0%
9mph
WNW
Partly Cloudy
Humidity
53%
Feels like
20°F
Dew Point
14°F
1 AM
28°F
0%
9mph
WNW
Partly Cloudy
Humidity
53%
Feels like
19°F
Dew Point
13°F
2 AM
27°F
0%
9mph
WNW
Partly Cloudy
Humidity
54%
Feels like
18°F
Dew Point
12°F
3 AM
26°F
0%
8mph
WNW
Mostly Clear
Humidity
54%
Feels like
18°F
Dew Point
12°F
4 AM
25°F
0%
7mph
WNW
Mostly Clear
Humidity
55%
Feels like
17°F
Dew Point
11°F
5 AM
24°F
0%
6mph
WNW
Clear
Humidity
56%
Feels like
17°F
Dew Point
11°F
6 AM
24°F
0%
6mph
NW
Clear
Humidity
56%
Feels like
17°F
Dew Point
11°F
7 AM
25°F
0%
5mph
NW
Clear
Humidity
54%
Feels like
19°F
Dew Point
11°F
7:12 AM
8 AM
27°F
0%
5mph
WNW
Sunny
Humidity
50%
Feels like
21°F
Dew Point
11°F
9 AM
29°F
0%
5mph
WNW
Sunny
Humidity
46%
Feels like
24°F
Dew Point
11°F
10 AM
31°F
10%
4mph
WNW
Sunny
Humidity
43%
Feels like
27°F
Dew Point
12°F
11 AM
33°F
10%
4mph
W
Sunny
Humidity
43%
Feels like
29°F
Dew Point
13°F
12 PM
34°F
20%
4mph
WSW
Sunny
Humidity
43%
Feels like
30°F
Dew Point
14°F
1 PM
34°F
20%
4mph
WSW
Sunny
Humidity
44%
Feels like
31°F
Dew Point
15°F
2 PM
34°F
10%
4mph
SW
Mostly Sunny
Humidity
46%
Feels like
31°F
Dew Point
15°F
3 PM
34°F
10%
3mph
SW
Partly Cloudy
Humidity
47%
Feels like
31°F
Dew Point
16°F
4 PM
33°F
10%
3mph
SW
Mostly Cloudy
Humidity
51%
Feels like
31°F
Dew Point
17°F
4:26 PM
5 PM
33°F
10%
3mph
SW
Mostly Cloudy
Humidity
54%
Feels like
30°F
Dew Point
18°F
6 PM
33°F
10%
4mph
SW
Mostly Cloudy
Humidity
57%
Feels like
30°F
Dew Point
20°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Monday's Weather Outlook

Monday's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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