Hourly Weather Forecast - Islip, NY

12 AM
28°F
0%
11mph
WNW
Mostly Clear
Humidity
53%
Feels like
18°F
Dew Point
13°F
1 AM
27°F
0%
10mph
WNW
Mostly Clear
Humidity
52%
Feels like
17°F
Dew Point
11°F
2 AM
26°F
0%
9mph
WNW
Mostly Clear
Humidity
52%
Feels like
17°F
Dew Point
11°F
3 AM
25°F
0%
9mph
WNW
Mostly Clear
Humidity
52%
Feels like
16°F
Dew Point
10°F
4 AM
25°F
0%
8mph
WNW
Mostly Clear
Humidity
52%
Feels like
16°F
Dew Point
10°F
5 AM
24°F
0%
7mph
NW
Mostly Clear
Humidity
53%
Feels like
16°F
Dew Point
10°F
6 AM
24°F
0%
6mph
NW
Clear
Humidity
54%
Feels like
17°F
Dew Point
10°F
7 AM
25°F
0%
6mph
NW
Clear
Humidity
55%
Feels like
17°F
Dew Point
11°F
7:12 AM
8 AM
26°F
0%
5mph
WNW
Sunny
Humidity
55%
Feels like
20°F
Dew Point
12°F
9 AM
28°F
0%
5mph
WNW
Sunny
Humidity
52%
Feels like
22°F
Dew Point
13°F
10 AM
30°F
10%
5mph
W
Sunny
Humidity
51%
Feels like
24°F
Dew Point
14°F
11 AM
31°F
10%
5mph
WSW
Sunny
Humidity
51%
Feels like
26°F
Dew Point
15°F
12 PM
32°F
20%
5mph
SW
Sunny
Humidity
52%
Feels like
27°F
Dew Point
16°F
1 PM
32°F
20%
5mph
SW
Sunny
Humidity
52%
Feels like
27°F
Dew Point
17°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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide