Our Proprietary 10-Day Forecast

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Current warnings over Port Jefferson Station, New York
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<p>Warnings from F5Weather</a></div>

United States weather warnings are issued by various organizations under NOAA. Most from the National Weather Service, but also Storm Prediction Center and National Hurricane Center.

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Current radar over Port Jefferson Station, New York red dot
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<p>Live radar from F5Weather</a></div>

Our radar is based off of US NEXRAD and Canadian weather radar sites through the quality controlled MRMS system. It compiles various sources for radar data and filters out erroneous returns such as sun spikes and ground clutter. We then colorize the precipitation based on our methods for determining precipitation type. Rain is in shades of green, mixed precipitation and freezing rain in shades of pink and snow is in shades of blue.

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Current satellite over Port Jefferson Station, New York red dot
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<p>Live satellite from F5Weather</a></div>

Our satellite is from the GOES-16. It is color enhanced by using a geocolor terrain background during the day and black marble city lights at night. The daytime satellite data is Visible satellite imagery, and nighttime uses Infrared bands. The bluish clouds are fog and low cloud. The whiteest clouds are the coldest, highest cloud tops.

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Current surface weather map around Suffolk County, NY

This surface map is from the HRRR computer model. It is a 1-hour forecast, updated hourly, which is a good estimate of the current surface conditions. This map shows the current high and low pressure centers, pressure isobar contours, wind streamlines and thickness contours. It also shows the currently depicted preciptiation estimates, although this should not be a substitute for actual live radar. The purple dashed contour is the 5400m thickness line, which is often a good proxy for the rain/snow line.

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Temperatures right now near Port Jefferson Station, New York

This is the latest surface temperatures as depicted by the HRRR computer model, updated hourly. Although these are not actual observations, this model is a very good representation of current conditions as it factors in observations, terrain and physics to give you more detailed temperatures in areas that do not have reporting weather stations. For the latest reports at specific locations, like in Port Jefferson Station, NY please see our current conditions data on the left and right side of this page, or go to our current conditions page.

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Surface wind speed map over Port Jefferson Station, NY

This map shows the latest HRRR computer model winds. This depiction of the current wind directions and speeds is an estimate from the computer model. For actual observations in Port Jefferson Station, NY, see the current conditions data on the left and right side of this page, or go to our current conditions page.

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Regional 24 hour rainfall expected near Port Jefferson Station, New York

This is a forecast of the amount of precipitation expected over the next 24 hours from the HRRR weather forecast model. This is only one forecast depiction, and you should check other models to get a better idea of what may happen. You can view this and other models in more detail on our main weather forecast maps page. There, you will also be able to look at forecasts beyond just 24 hours and look at forecasts out to as far as 16 days.

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Area snowfall accumulation expected around Suffolk County, New York

This is snowfall forecast, with amounts anticipated in the next 24 hours. This guidance is from the HRRR weather model. For more model forecasts out to 16 days, visit our main weather forecast maps page.

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These are Convective Outlooks from the Storm Prediction Center. Click to see Days 1-3 broken down into Tornado, Wind and Hail threats, as well as days 5-8 outlooks.

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Atlantic Hurricane and Tropical Storm Tracking Map
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<p>Hurricane Tracking from F5Weather</a></div>

Our hurricane tracking map monitors for any current or forecast tropical disturbances in the Atlantic. (See our Pacific Hurricane Tracker) Various hurricane models will draw a 'spaghetti plot' in the Atlantic Basin when a disturbance is forecast or exists, showing the system's forecast track. Once a storm has developed, the National Hurricane Center will forecast their official track. This will show up on the map along with the storm's current intensity, track and name. We will also plot some of the storm's vitals and of course the spaghetti plots from the models along with the NHC forecast track will give you an idea of where it's heading, and its forecast intensity with time.

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To view the latest computer models, visit f5wx.com for access to the weather maps and guidance that meteorologists use to make their forecasts.
 
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  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
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  • American NBM - National Blend of Models
  • GEFS, GEPS, MOGREPS & European Ensembles
  • Probabilities & Averages
  • 3-Ensemble Mean & more!
View Skew-T soundings, textual data tables for your location, and of course maps! Weather forecast maps of the basics like temperature, wind, pressure, humidity, dew point, cloud cover, simulated radar, travel weather, rainfall and snow are available. More advanced users can also get use out of our severe weather & tornado threat maps, as well as upper air & shear graphics.
 
See the latest forecast data as the models update.
 
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Climate Summary
(made with AI, use with caution)
Port Jefferson Station, NY Climate Summary

Location

Suffolk County, Long Island, New York

Köppen Climate Classification

Humid subtropical (Cfa)

Average Temperature

    •   Annual: 52.8°F (11.6°C)
    •   January: 32.3°F (0.2°C)
    •   July: 73.1°F (22.8°C)

Average Precipitation

    •   Annual: 45.8 inches (1163 mm)
    •   Driest month: February (2.8 inches / 71 mm)
    •   Wettest month: August (4.9 inches / 124 mm)

Average Snowfall

    •   Annual: 22.3 inches (56.6 cm)
    •   Most snowfall in a month: January (9.1 inches / 23.1 cm)

Average Sunshine

    •   Annual: 2,600 hours
    •   Sunniest month: July (310 hours)
    •   Cloudiest month: December (140 hours)

Other Climate Features

    •   Hurricanes

Port Jefferson Station is located in an area that is occasionally affected by hurricanes.

    •   Coastal flooding

The area is also vulnerable to coastal flooding during high tides and storm surges.

    •   Freezing temperatures

Freezing temperatures are common during the winter months.

    •   Humid summers

Summers are typically hot and humid.

    •   Mild winters

Winters are generally mild, with occasional snowfall and icy conditions.

Climate Change Projections

Climate change is expected to impact the climate of Port Jefferson Station in the following ways:

    •   Increased temperatures
    •   More frequent and intense heat waves
    •   Increased precipitation, particularly during the winter and spring
    •   More frequent and severe coastal flooding
    •   Sea level rise

Facts & Historical Information
(made with AI, use with caution)
Natural History

    •   Port Jefferson Station is home to the Stony Brook University Center for Environmental Research and Coastal Oceans.

    •   The area is rich in wetlands, providing habitat for various bird species, including egrets, herons, and osprey.

    •   The nearby Long Island Sound is an important estuary, home to diverse marine life, including fish, shellfish, and dolphins.

Science

    •   The Brookhaven National Laboratory, a major scientific research facility, is located nearby.

    •   The area has a history of scientific innovation, with notable figures like Nikola Tesla and Albert Einstein having visited the region.

Personalities

    •   William Floyd, a signer of the Declaration of Independence, lived in nearby Mastic Beach.

    •   The writer and poet Walt Whitman spent his later years in Huntington, just a few miles away.

    •   The inventor Thomas Edison had a summer home in nearby West Sayville.

Tourist Attractions
1.Port Jefferson Village:

A charming waterfront village with shops, restaurants, and historic buildings. Take a walk along the harbor, visit the Maritime Museum, or enjoy a meal at one of the many waterfront restaurants.

2.The Vanderbilt Museum and Planetarium:

This museum is housed in the former mansion of William K. Vanderbilt II. It features exhibits on art, history, and science, as well as a planetarium.

3.The Long Island Aquarium & Exhibition Center:

This aquarium is home to over 10,000 marine animals, including sharks, penguins, and sea turtles. There are also interactive exhibits and a 4D theater.

Nearby Cities:

Terryville, NY
Mount Sinai, NYPort Jefferson, NY
Miller Place, NYSelden, NY
East Setauket, NYCoram, NY
Sound Beach, NYCentereach, NY
Stony Brook, NYGordon Heights, NY
Middle Island, NYLake Grove, NY
Farmingville, NYHead of the Harbor, NY
Rocky Point, NYSaint James, NY
Brooklyn, NY
Queens, NYManhattan, NY
Manhattan, NYStaten Island, NY
Newark, NJJersey City, NJ
Jamaica, NYYonkers, NY
Worcester, MAProvidence, RI
East Flatbush, NY