Our Proprietary 10-Day Forecast

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Current warnings over Roslyn, 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 Roslyn, 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 Roslyn, 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 Nassau 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 Roslyn, 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 Roslyn, 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 Roslyn, 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 Roslyn, 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 Roslyn, 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 Nassau 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.
 
Get access to:
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  • 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)
Roslyn, NY Climate Summary

General Climate


    •   Humid subtropical climate, characterized by hot, humid summers and mild, wet winters.

Temperature


    •   Average annual temperature: 53.4°F (11.9°C)
    •   Average July high: 85.1°F (29.5°C)
    •   Average January low: 24.9°F (-4.5°C)

Precipitation


    •   Average annual precipitation: 46.1 inches (1171 mm)
    •   Average snowfall: 21.2 inches (538 mm)
    •   Most precipitation occurs in the summer months.

Humidity


    •   High humidity throughout the year, especially in the summer.

Wind


    •   Prevailing wind direction: Southwest
    •   Average wind speed: 10.2 mph (16.4 km/h)

Sunshine


    •   Average annual sunshine: 2,619 hours
    •   Most sunshine occurs in the summer months.

Seasonal Climate

Spring (March-May)


    •   Mild temperatures with increasing warmth
    •   Frequent rainfall
    •   Possible thunderstorms

Summer (June-August)


    •   Hot and humid
    •   Heaviest rainfall of the year
    •   Occasional heat waves

Autumn (September-November)


    •   Decreasing temperatures with occasional warm spells
    •   Lower humidity
    •   Less frequent rainfall

Winter (December-February)


    •   Cold and wet
    •   Snowfall possible
    •   Occasional freezing temperatures

Climate Change Impacts

    •   Rising temperatures, leading to more extreme heat events
    •   Increased frequency and intensity of heavy rainfall
    •   Sea level rise, potentially affecting coastal areas
    •   Changes in plant and animal life due to altered climate conditions

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

    •   Roslyn is home to the Planting Fields Arboretum State Historic Park, boasting over 400 acres of gardens, woodlands, and historic buildings.

    •   The park is a prime spot for birdwatching, with over 200 species recorded within its boundaries.

    •   The nearby Hempstead Harbor is an important estuary for marine life, including fish, shellfish, and migratory birds.

Science

    •   The Brookhaven National Laboratory, a world-renowned research institution, is located in nearby Upton.

    •   Roslyn was the birthplace of Nobel Prize-winning physicist Isidor Isaac Rabi, who made significant contributions to nuclear physics.

    •   The Cold Spring Harbor Laboratory, a leading center for genetics and cancer research, is just a short drive away.

Personalities

    •   The famous novelist F. Scott Fitzgerald lived in Roslyn during the 1920s, and his home is now a museum.

    •   The actress Natalie Wood grew up in Roslyn and attended Roslyn High School.

    •   The singer and songwriter Billy Joel was born in Roslyn and still resides in the area.

Tourist Attractions
1.Sands Point Preserve Conservancy:

A sprawling 216-acre park with stunning waterfront views, historic mansions, and lush gardens.

2.Nassau County Museum of Art:

Home to a diverse collection of over 14,000 works, including American and European paintings, sculptures, and decorative arts.

3.Planting Fields Arboretum State Historic Park:

A 409-acre botanical garden with over 2,500 varieties of plants, including a rose garden, a Japanese garden, and a conservatory.

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Munsey Park, NYGreenvale, NY
Roslyn Harbor, NYFlower Hill, NY
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Herricks, NYOld Westbury, NY
Manhasset, NYMineola, NY
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Brooklyn, NY
Queens, NYManhattan, NY
Philadelphia, PAManhattan, NY
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Jersey City, NJJamaica, NY
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