Our Proprietary 10-Day Forecast

Loading Forecast...

Current warnings over Islip, New York
Add warnings to your site:
<div style='text-align:center'><a href='https://f5wx.com/warnings/'>
  <img src="https://www.f5wx.com/warnings/warningsF5.gif" alt='F5Weather Warnings Map' />
<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.

Do not use our graphics for protection of life or property. Delays in image processing are possible.

You are free to embed our warning graphics into your web site using the code above. We just ask that you keep a link and credit to F5Weather as a source for the graphics.


View more weather maps.

Zoom Out

Current radar over Islip, New York red dot
Add this radar to your site:
<div style='text-align:center'><a href='https://f5wx.com/radar/'>
<img src='https://www.f5wx.com/radar/live/radar_nyc.gif' alt='F5Weather Radar'>
<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.

View more weather maps.

Zoom Out

Current satellite over Islip, New York red dot
Add this satellite to your site:
<div style='text-align:center'><a href='https://f5wx.com/satellite/'>
<img src='https://www.f5wx.com/satellite/live/ir_nyc.gif' alt='F5Weather Satellite'>
<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.

View more weather maps.

Zoom Out

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.

View more weather maps.

Zoom Out

Temperatures right now near Islip, 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 Islip, NY please see our current conditions data on the left and right side of this page, or go to our current conditions page.

View more weather maps.

Zoom Out

Surface wind speed map over Islip, 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 Islip, NY, see the current conditions data on the left and right side of this page, or go to our current conditions page.

View more weather maps.

Zoom Out

Regional 24 hour rainfall expected near Islip, 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.

View more weather maps.

Zoom Out

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.

View more weather maps.

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.

View more weather maps.

Atlantic Hurricane and Tropical Storm Tracking Map
Add this hurricane tracker to your site:
<div style='text-align:center'><a href='https://www.f5wx.com/models/hurricane/atlantic.png'>
<img src='https://www.f5wx.com/models/hurricane/atlantic.png' alt='F5Weather Atlantic Hurricane and Tropical Storm Tracking Map'>
<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.

View more weather maps.

F5Weather Maps splash

To view the latest computer models, visit f5wx.com for access to the weather maps and guidance that meteorologists use to make their forecasts.
 
Get access to:
  • European ECMWF HRES
  • American GFS
  • Canadian GDPS GEM
  • German DWD ICON
  • British MetOffice's UKMET Unified Model
  • American NAM
  • American HRRR
  • 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.
 
F5Weather Maps

Climate Summary
(made with AI, use with caution)
Islip, New York Climate Summary

General Climate

    •   Humid subtropical climate (Köppen classification: Cfa)
    •   Characterized by hot, humid summers and mild, moderately wet winters

Temperature

    •   Average Annual Temperature

53.6°F (12.0°C)

    •   Average Summer Temperature (June-August)

73.8°F (23.2°C)

    •   Average Winter Temperature (December-February)

33.3°F (0.7°C)

    •   Record High Temperature

104°F (40°C)

    •   Record Low Temperature

-10°F (-23°C)

Precipitation

    •   Average Annual Precipitation

46.7 inches (118.6 cm)

    •   Average Summer Precipitation (June-August)

11.9 inches (30.2 cm)

    •   Average Winter Precipitation (December-February)

10.6 inches (26.9 cm)

    •   Average Snowfall

24.7 inches (62.7 cm)

Humidity

    •   Average Annual Relative Humidity

73%

    •   Average Summer Relative Humidity

75%

    •   Average Winter Relative Humidity

70%

Wind

    •   Prevailing Wind Direction

West-southwest

    •   Average Wind Speed

10.4 mph (16.7 km/h)

Other

    •   Growing Season

200-220 days

    •   Hardiness Zone

7a

    •   Average Number of Thunderstorms

20-30 per year

    •   Average Number of Hurricanes

0-1 per year

Summary

Islip, New York experiences a humid subtropical climate with hot, humid summers and mild, moderately wet winters. Precipitation is distributed evenly throughout the year, with slightly more rainfall during the summer months. The area is prone to occasional thunderstorms and hurricanes. The growing season is relatively long, and the hardiness zone is 7a.

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

    •   Islip is home to the Bayard Cutting Arboretum, a 691-acre preserve with over 3,000 species of plants.

    •   The Connetquot River State Park Reserve encompasses 3,475 acres of diverse ecosystems, including forests, wetlands, and tidal marshes.

    •   The Islip Marshes are a 1,000-acre complex of salt marshes and tidal creeks, providing habitat for numerous bird species.

Science

    •   Brookhaven National Laboratory, a major scientific research center, is located in Upton, Islip.

    •   The Islip Town Science Fair has been held annually since 1961, showcasing student projects in STEM fields.

    •   The Islip Public Library offers a variety of science-related programs and resources for all ages.

Personalities

    •   Bayard Cutting (1887-1972): A wealthy philanthropist who established the Bayard Cutting Arboretum.

    •   Charles Lindbergh (1902-1974): The famous aviator lived in Islip and flew his \

Tourist Attractions
1.Fire Island National Seashore

is a 26-mile-long barrier island located just off the coast of Long Island. The seashore is a popular destination for swimming, sunbathing, fishing, and hiking. There are also several historic sites on the island, including the Sunken Forest, which is a maritime forest that was destroyed by a hurricane in 1938.

2.Islip Town Beach

is a 1,000-foot-long beach located on the Great South Bay. The beach is a popular destination for swimming, sunbathing, and fishing. There are also several picnic areas and a playground on the beach.

3.Heckscher State Park

is a 1,657-acre park located on the north shore of Long Island. The park is home to a variety of natural habitats, including forests, meadows, and wetlands. There are also several hiking trails, a bike path, and a boat launch in the park.

Nearby Cities:

East Islip, NY
Islip Terrace, NYBay Shore, NY
Great River, NYNorth Great River, NY
North Bay Shore, NYBrightwaters, NY
West Bay Shore, NYOakdale, NY
Brentwood, NYBay Wood, NY
Central Islip, NYWest Islip, NY
North Babylon, NYWest Sayville, NY
Bohemia, NYIslandia, NY
Brooklyn, NY
Queens, NYManhattan, NY
Philadelphia, PAManhattan, NY
Staten Island, NYNewark, NJ
Jersey City, NJJamaica, NY
Yonkers, NYProvidence, RI
East Flatbush, NY