Port Jefferson (11777) Daily Weather Forecast

Long Island Weather: 2 Snow Chances This Week

There are two storm systems that could bring snow to the island this week. The temperature won't crack 40 all week. Bundle up.

Winter Storm Threatens Long Island Next Week

See what you need to know about a storm that could bring accumulating snow to the area.

Hazardous Weather Outlook Issued For Long Island

See the latest from the National Weather Service.

Power outages

Storm

Weekend Snow Update: What To Expect On Long Island

Will our snow drought finally end? See the latest forecast.

LI Weather: Winter Storm Likely To Cause Holiday Travel Chaos

Long Island may see its first accumulating snow of the season this weekend.

Hazardous Weather Outlook Issued For Long Island

Damaging winds and flooding are possible. See the latest forecast.

Heat Advisory Issued For Long Island

See just how hot it's expected to get on Tuesday.

Severe Thunderstorm, Flash Flood Watches Issued For Long Island

Quarter-size hail and wind gusts up to 70 mph are possible. See when we can expect the worst of it.

Hour-by-Hour Snow/Sleet Forecast For Long Island

Check out the winter weather forecast for Monday morning as well as details on a potential mid-week storm.

Winter Weather Advisory Issued For LI With Snow, Ice on The Way

Hazardous conditions on the roadways will impact the morning and evening commutes Tuesday. See the hour-by-hour forecast.

Flash Flood Watch Issued For Long Island

It may be a rough ride to work Thursday morning.

Special Weather Statement Issued For Long Island

Use caution if you are hitting the road tonight or Christmas morning.

Another Chance of Snow in the Forecast

And you will need some serious layers come Thanksgiving.

Witches May Be Brewing Up a Pre-Halloween Nor'easter

There is the potential for a powerful coastal storm to strike Long Island next weekend, forecasters say.

Hurricane Michael Set to Hit Florida; What's In Store For LI?

Here's what we can expect on Long Island as Hurricane Michael gets set to smash into the Florida Panhandle.

8-12 Foot Waves Lash Long Island Coast

A high surf advisory is in effect as Hurricane Florence churns up seas from hundreds of miles away.

Heat Advisory, Severe Thunderstorms Possible Thursday

The heat index may hit 100 degrees Thursday and there is a risk of severe storms. Check out the hour-by-hour forecast.

Storms May Impact Wednesday Morning Commute

The potential for a waterspout/weak tornado near the immediate coast will need to be monitored, the National Weather Service says.

Long Island Weather: Snow Total Estimates For Weekend Storm

The National Weather Service has released its first official snowfall total estimates for a weekend snowstorm.

Hazardous Weather Outlook Issued For Long Island

The National Weather Service has released its first official snowfall total estimates for a weekend snowstorm.

Special Weather Statement Issued For Long Island

The National Weather Service issued a new special weather statement for the island late Wednesday night.

Weekend Snow Update: The Latest On How Much And When

Snow is still coming this weekend, but eyes are quickly going to turn to a potentially major winter storm next week.

Hazardous Weather Outlook Issued For Long Island

​The National Weather Service has just issued a hazardous weather outlook for Long Island.

Hurricane Jose: Long Island Braces For Multiple Impacts

Everything you need to know about Jose as the storm gets set to lash the island.

Hurricane Irma: How Will It Affect Long Island?

Though all attention remains on the Southeast, Long Island isn't expected to escape unscathed.

Dangerous Long Island Beach Conditions Expected With Tropical Storm Offshore

A tropical storm will likely impact the Southeast this week. How close will the storm get to Long Island? We've got the latest forecast.

Long Island Weather: Rising Temperatures, Thunderstorm Risk On Multiple Days This Week

Temperatures will be above normal and there's a thunderstorm risk for Long Island on three of the five work days ahead.

Hazardous Weather Outlook Issued For Long Island

Heads up. Some nasty weather is headed our way.

Long Island's Week-Ahead Weather Forecast Includes Sunshine, Thunderstorms

It won't be too hot or too cold. All you will need is a light jacket. And maybe an umbrella.

Long Island Weather: Friday Snow Estimates Rise Again; Winter Weather Advisory Issued

The heaviest snow is expected during the Friday morning commute. And don't look now, but another snowstorm may be coming next week.

Long Island Weather Forecast: Winter Storm Warning Issued, Up to a Foot of Snow Possible

Snowfall rates of more than two inches an hour are possible Thursday, the National Weather Service says.

High Wind Watch Issued For Long Island

BREAKING: Downed trees and power lines are likely, with numerous power outages possible, the National Weather Service says.

Stormy Saturday: Heavy Rain, Damaging Winds Possible on Long Island

A hazardous weather outlook is in effect. Severe thunderstorms possible. Check out the hour-by-hour forecast.

Severe Thunderstorm Watch Issued for Long Island

Gusty winds up to 70 mph, heavy rain and hail will be possible Monday, the National Weather Service says.