Our Proprietary 10-Day Forecast

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Current warnings over Saint James, 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 Saint James, 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 Saint James, 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 Saint James, 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 Saint James, 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 Saint James, 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 Saint James, 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 Saint James, 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.
 
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)
Saint James, New York Climate Summary

Average Temperatures

    •   January: 28°F (-2°C)
    •   July: 75°F (24°C)
    •   Annual average: 52°F (11°C)

Precipitation

    •   Average annual rainfall: 45 inches (114 cm)
    •   Average annual snowfall: 25 inches (64 cm)

Sunshine

    •   Average annual sunshine hours: 2,600

Humidity

    •   Average annual humidity: 70%

Wind

    •   Prevailing wind direction: West
    •   Average wind speed: 10 mph (16 km/h)

Climate Type

    •   Humid subtropical climate (Köppen classification: Cfa)

Seasonal Characteristics

    •   Spring (March-May)

Mild temperatures, increasing rainfall, occasional thunderstorms.

    •   Summer (June-August)

Warm and humid, with occasional heat waves.

    •   Fall (September-November)

Crisp temperatures, decreasing rainfall, vibrant foliage.

    •   Winter (December-February)

Cold and snowy, with occasional thaws.

Extreme Weather Events

    •   Hurricanes

Saint James is located within the Atlantic hurricane zone and can be affected by hurricanes and tropical storms.

    •   Nor'easters

These coastal storms can bring heavy snow, rain, and strong winds.

    •   Heat waves

Temperatures can occasionally reach the 90s (°F) during the summer months.

    •   Cold spells

Temperatures can drop below freezing during the winter months.

Climate Change Impacts

    •   Rising temperatures are expected to lead to more extreme heat events and an increase in the frequency and intensity of hurricanes.
    •   Sea level rise is also a concern for coastal communities like Saint James.

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

    •   Saint James is home to the Nissequogue River State Park, a 523-acre preserve with diverse habitats, including forests, wetlands, and a river.

    •   The park is a haven for wildlife, including deer, foxes, and over 200 bird species.

    •   The Nissequogue River is a designated American Heritage River, known for its scenic beauty and ecological importance.

Science

    •   The Brookhaven National Laboratory, a world-renowned research facility, is located in Saint James.

    •   The lab has conducted groundbreaking research in nuclear physics, particle physics, and environmental science.

    •   Scientists at Brookhaven have made significant contributions to our understanding of the universe and the environment.

Personalities

    •   Saint James was the home of Dr. Jonas Salk, who developed the polio vaccine.

    •   Salk's research at the University of Pittsburgh led to the development of the first effective vaccine against the deadly disease.

    •   His discovery saved countless lives and remains a major medical milestone.

Tourist Attractions
1.Vanderbilt Museum**

2.Planting Fields Arboretum State Historic Park**

3.Sagamore Hill National Historic Site**

Nearby Cities:

Nesconset, NY
Village of the Branch, NYLake Grove, NY
Head of the Harbor, NYLake Ronkonkoma, NY
Centereach, NYSmithtown, NY
Nissequogue, NYStony Brook, NY
Hauppauge, NYRonkonkoma, NY
Islandia, NYTerryville, NY
East Setauket, NYHolbrook, NY
Kings Park, NYSelden, NY
Brooklyn, NY
Queens, NYManhattan, NY
Manhattan, NYStaten Island, NY
Newark, NJJersey City, NJ
Jamaica, NYYonkers, NY
Worcester, MAProvidence, RI
East Flatbush, NY