Hourly Weather Forecast - Islip, NY

12 AM
33°F
0%
1mph
WNW
Mostly Cloudy
Humidity
78%
Feels like
33°F
Dew Point
27°F
1 AM
33°F
0%
1mph
WNW
Mostly Cloudy
Humidity
79%
Feels like
33°F
Dew Point
28°F
2 AM
33°F
10%
1mph
W
Partly Cloudy
Humidity
80%
Feels like
33°F
Dew Point
28°F
3 AM
33°F
10%
1mph
WSW
Partly Cloudy
Humidity
80%
Feels like
33°F
Dew Point
28°F
4 AM
33°F
10%
1mph
WSW
Partly Cloudy
Humidity
81%
Feels like
33°F
Dew Point
28°F
5 AM
34°F
10%
1mph
SW
Partly Cloudy
Humidity
82%
Feels like
34°F
Dew Point
29°F
6 AM
35°F
10%
1mph
SW
Mostly Cloudy
Humidity
82%
Feels like
35°F
Dew Point
30°F
7 AM
36°F
30%
1mph
SW
30% Chance Frozen Mix
Humidity
82%
Feels like
36°F
Dew Point
31°F
7:15 AM
8 AM
37°F
30%
2mph
SW
30% Chance of Rain
Humidity
81%
Feels like
37°F
Dew Point
32°F
9 AM
39°F
30%
2mph
SW
30% Chance of Rain
Humidity
80%
Feels like
39°F
Dew Point
33°F
10 AM
40°F
30%
3mph
SW
30% Chance of Light Rain
Humidity
81%
Feels like
38°F
Dew Point
35°F
11 AM
41°F
40%
4mph
SW
40% Chance Rain Showers
Humidity
83%
Feels like
39°F
Dew Point
36°F
12 PM
42°F
40%
4mph
SW
40% Chance Rain Showers
Humidity
85%
Feels like
40°F
Dew Point
38°F
1 PM
43°F
40%
4mph
SW
40% Chance Rain Showers
Humidity
88%
Feels like
41°F
Dew Point
39°F
2 PM
43°F
40%
3mph
SW
40% Chance Rain Showers
Humidity
90%
Feels like
43°F
Dew Point
40°F
3 PM
43°F
40%
2mph
WSW
40% Chance Rain Showers
Humidity
92%
Feels like
43°F
Dew Point
41°F
4 PM
42°F
30%
2mph
WSW
30% Chance Rain Showers
Humidity
94%
Feels like
42°F
Dew Point
41°F
4:30 PM
5 PM
42°F
20%
1mph
WSW
Partly Cloudy
Humidity
96%
Feels like
42°F
Dew Point
41°F
6 PM
41°F
10%
1mph
WSW
Partly Cloudy
Humidity
98%
Feels like
41°F
Dew Point
41°F
7 PM
41°F
10%
1mph
WSW
Foggy
Humidity
99%
Feels like
41°F
Dew Point
41°F
8 PM
40°F
10%
1mph
WSW
Foggy
Humidity
100%
Feels like
40°F
Dew Point
40°F
9 PM
40°F
20%
0mph
WSW
Foggy
Humidity
100%
Feels like
40°F
Dew Point
40°F
10 PM
40°F
30%
0mph
WSW
30% Chance of Light Rain
Humidity
100%
Feels like
40°F
Dew Point
40°F
11 PM
40°F
40%
0mph
SW
40% Chance of Light Rain
Humidity
100%
Feels like
40°F
Dew Point
40°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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