Islip (11751) Daily Weather Forecast

Swimming Advisory Issued At 7 Islip Beaches After Heavy Rain

Suffolk health officials are advising against swimming at seven Town of Islip beaches following heavy rainfall.

Heavy Rain Prompts Swimming Advisory At 9 Islip Beaches

Suffolk health officials are advising against swimming at several beaches across the town of Islip.

Bathing Advisory Issued For 10 Islip Beaches After Heavy Rain

Health officials said water contact should be avoided at affected beaches in the Town of Islip until the advisory is lifted.

Veterans Day Weekend To Reach Low 50s, 11MPH Winds: Weekend Forecast

Long Island can expect a slight chance of rain before a dry and sunny Veterans Day weekend, the National Weather Service says.

Gusts Of 29MPH, Low 50s Temperatures: LI Weather Forecast

The air will continue to feel like fall this week on Long Island.

Sunny Skies, Temps In The Low 60s: Long Island Weekend Forecast

Unlike last weekend, Long Island's upcoming forecast looks completely dry.

Possible Showers On Halloween Night: LI Weekly Weather Forecast

This Halloween, be sure to bring an umbrella when trick-or-treating.

Rain-Free Weekend? Not Quite On LI: Weekend Weather Forecast

While Saturday will show spring-like weather, Sunday has a slight chance of precipitation. Read on to learn this weekend's forecast.

Again? LI To Experience Heavy Rain For 7th Consecutive Weekend: NWS

Rain. . . again? This weekend's Nor'easter is set to continue a string of rainy weekends on Long Island.

Fall Weather, Light Showers, Returns To LI: Weekly Weather Forecast

Fall is in the air on Long Island this week. Read on to learn about the weekly weather forecast.

Spring-Like Weather, Then Rainy Weekend: LI Weekend Weather

Be sure to enjoy the weather Thursday and Friday before rain hits again this weekend.

Rain To Return This Weekend To LI: What To Expect

Showers will return on Saturday, but skies will clear up on Sunday, the National Weather Service says.

Canada Wildfire Smoke To Return To LI Area: What To Expect

After a week of heavy rainfall and flash flooding, Long Island will experience dry temperatures.

Governor Declares State Of Emergency On LI Due To Heavy Flooding, Rain

The announcement comes as Nassau County remains in a flash flood warning, and as heavy rains continue on LI.

Rain, Flood Advisory, To Return To Long Island, After Brief Pause

Rain went on hiatus on Wednesday. But it will visit Long Island with possible thunderstorms this weekend.

Coastal Flood Advisory, Heavy Rains, To Continue This Week: LI Weather

Long Island will continue to experience rain from post-tropical cyclone Ophelia, the National Weather Service said.

Potential Tropical Storm To Hit LI Saturday, Surf Advisory In Effect

A Potential Tropical Cyclone 16 and frontal system is predicted to impact the region, bringing rain and high winds.

38 MPH Winds, 70 Percent Chance Of Precipitation: LI Weekend Weather

Rain and heavy winds are expected this weekend on Long Island, according to the National Weather Service.

Rainy Start, Then A Sunny, Dry Week: LI Weather

Long Island is gearing up for another mainly sunny week, after a stormy start, the National Weather Service says.

Coastal Flood Advisory In Effect On LI This Weekend: Hurricane Lee

A coastal flood advisory will go into effect on southern Long Island on Friday, as Hurricane Lee continue to travel north.

33 MPH Winds, High Surf Advisory In Effect Saturday: Weekend Weather

Strong winds are expected on Saturday, with gusts as high as 33mph, as Hurricane Lee travels north in the direction of New England.

Flood Watch, High Surf Warning, Issued On LI: National Weather Service

The advisories were issued as thunderstorms and strong winds are expected on Wednesday night.

Flood Watch Issued For LI, Marine Winds Around 30 Knots: Weather

A flood watch is in effect on Long Island, as excessive rainfall and possible showers are predicted on Monday.

LI Heat Advisory Issued Friday, For Third Consecutive Day: NWS

The heat value index values will continue to feel like from 95 to 100 degrees on Long Island, the service said.

98 Degree Heat Index Values, Heat Advisory Issued Thursday: LI Weather

A heat advisory warning is issued for Thursday on Long Island, as heat index values will be as high as 98 degrees.

Heat Advisory Issued On Long Island, As Temps Soar To Mid 90s

The National Weather Service issued a heat advisory on Wednesday, as heat index values skyrocket.

90 Degree Days, Summer Weather To Continue On LI: Weekly Forecast

Summer is far from over on Long Island. Check out the weekly forecast to learn more.

Labor Day Weekend To Reach 87 Degrees, Despite Swim Ban From Hurricane

Several South Shore beaches continue to suspend swimming due to conditions from Hurricane Franklin. Read on to find out which ones.

Rain, Possible Thunderstorms, For Last Weekend Of August: LI Weather

The last weekend of August will expect mostly rainfall, the National Weather Service said.

Clear, Sunny Skies For The Last Full Week Of August: LI Weather

This week's weather allows Long Islanders to soak up the last of summer activities.

Possible Thunderstorms Thursday Through Friday, Rip Current Hazards

A high risk of rip current development is likely at ocean beaches, the National Weather Service said.

90 Percent Chance of Precipitation, Thunderstorms Monday: LI Weather

A frontal system will impact the region​ Monday night through Tuesday night, producing heavy rainfall.

Possible LI Storms To Weave In Between Sunny Days: Weekend Weather

Rain will weave in and out of the forecast between sunny skies this weekend, according to the National Weather Service.

Thunderstorms, Heavy Rain Continues Monday Through Tuesday: LI Weather

The area is under a slight flooding risk, as heavy rain continues through Tuesday, the National Weather Service said.

Possible Thunderstorms, Then Sunny Skies This Weekend: LI Weather

The first weekend of August will start with rain, but then lighten up with beach-worthy weather.

80 Degree Temperatures, String Of Sunny Skies This Week: LI Weather

After a weekend of exceedingly high heat indexes, Long Island can expect typical summer weather this week.

Poor Air Quality Advisory Extends Through Friday, Heat Index Of 98

Ozone levels will become elevated due to the high temperatures, Suffolk County Health Department says.

Bad Air, Heat Index Of 100+: Advisory Extended On Long Island

The heat index is expected to reach 101 degrees on Thursday, the National Weather Service says.

Heat Index To Reach 102 On Thursday, Advisory Issued On LI

The area's heat index values are expected to go as high as 102 on Thursday and Friday, the National Weather Service said.

Long Island On Severe Thunderstorm Watch: National Weather Service

The possible showers and thunderstorms have the potential to produce scattered flash flooding and damaging winds.