Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Peak hurricane season is here, but will a hurricane form this year in the Atlantic? Click for details. Chevron right

Islip, NY

70°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Islip

New York

70°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Islip, NY Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel

For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center

Today Hourly

10-Day

Radar MinuteCast® Monthly Air Quality Health & Activities

Unlock extended 90-day forecasts

Activate Your Premium+ Subscription

Chevron right

September 11 - September 25

Fri 9/11

81° /60°
0%
Not as warm with lower humidity with some clouds, then sunshine

RealFeel®83°

RealFeel Shade™78°

Max UV Index6.0 (High)

WindNW 7 mph

Sat 9/12

77° /70°
3%
Sunshine mixing with clouds and nice

RealFeel®80°

RealFeel Shade™74°

Max UV Index6.0 (High)

WindSE 9 mph

Sun 9/13

79° /67°
77%
Humid; occasional rain and a thunderstorm in the morning, then intervals of clouds and sunshine in the afternoon

RealFeel®83°

RealFeel Shade™81°

Max UV Index2.0 (Low)

WindWSW 9 mph

Total Hours of Precipitation2

Total Hours of Rain2

Mon 9/14

78° /58°
8%
Mostly sunny, pleasant and less humid

RealFeel®78°

RealFeel Shade™75°

Max UV Index5.0 (Moderate)

WindN 10 mph

Tue 9/15

72° /62°
14%
Mostly sunny and nice

RealFeel®77°

RealFeel Shade™69°

Max UV Index5.0 (Moderate)

WindSE 6 mph

Wed 9/16

80° /65°
21%
Partly sunny and humid

RealFeel®83°

RealFeel Shade™78°

Max UV Index5.0 (Moderate)

WindSSW 10 mph

Thu 9/17

79° /65°
1%
Humid with plenty of sun

RealFeel®83°

RealFeel Shade™79°

Max UV Index5.0 (Moderate)

WindSSW 9 mph

Fri 9/18

78° /59°
80%
Morning showers; otherwise, rather cloudy

RealFeel®78°

RealFeel Shade™76°

Max UV Index2.0 (Low)

WindNNW 9 mph

Total Hours of Precipitation3

Total Hours of Rain3

Sat 9/19

74° /56°
1%
Less humid with sun and areas of high clouds

RealFeel®76°

RealFeel Shade™72°

Max UV Index4.0 (Moderate)

WindNE 8 mph

Sun 9/20

71° /57°
0%
Sun through high clouds and humid

RealFeel®73°

RealFeel Shade™71°

Max UV Index3.0 (Moderate)

WindNE 14 mph

Mon 9/21

70° /57°
1%
Sun through high clouds, windy and less humid

RealFeel®67°

RealFeel Shade™66°

Max UV Index2.0 (Low)

WindENE 22 mph

Tue 9/22

70° /55°
0%
Sunshine and a few clouds

RealFeel®69°

RealFeel Shade™66°

Max UV Index5.0 (Moderate)

WindNE 18 mph

Wed 9/23

69° /58°
0%
Mostly sunny

RealFeel®74°

RealFeel Shade™69°

Max UV Index5.0 (Moderate)

WindE 7 mph

Thu 9/24

73° /55°
25%
Increasing clouds

RealFeel®71°

RealFeel Shade™71°

Max UV Index3.0 (Moderate)

WindENE 7 mph

Fri 9/25

65° /51°
10%
Mostly sunny

RealFeel®67°

RealFeel Shade™64°

Max UV Index5.0 (Moderate)

WindNE 7 mph

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Hurricane

Will 2026 go down with no Atlantic hurricanes?

52 minutes ago

Climate

August 2026 ties record for hottest month ever on Earth

10 hours ago

Hurricane

No Atlantic hurricanes by Sept. 12 would break a 60-year record

19 hours ago

Weather Forecasts

9/11 anniversary weather: Friday’s forecast compared with 2001

59 minutes ago

Weather Forecasts

California heat to ease as snow returns to Northwest mountains

1 hour ago

More Stories

Featured Stories

Hurricane

Former Hurricane Marie surf opens massive Malibu sinkhole

1 day ago

Weather News

What is a seismic doublet?

13 hours ago

Hurricane

Hurricane Lowell swipes Hawaii, knocking out power to Kaua'i

1 day ago

Weather News

Spotted lanternflies have spread to 22 states: ‘They’re here to stay’

2 days ago

Recreation

Alligator attacks child swimming in restricted Florida waters

1 day ago

World North America United States New York Islip

Weather Near Islip:

  • Bridgeport, CT
  • New York, NY
  • Newark, NJ
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...