Our Proprietary 10-Day Forecast

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Current warnings over Lake Ronkonkoma, 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 Lake Ronkonkoma, 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 Lake Ronkonkoma, 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 Lake Ronkonkoma, 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 Lake Ronkonkoma, 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 Lake Ronkonkoma, 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 Lake Ronkonkoma, 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 Lake Ronkonkoma, 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)
General Climate Summary

    •   Köppen Climate Classification

Humid subtropical (Cfa)

    •   Average Annual Temperature

52.2°F (11.2°C)

    •   Average Annual Precipitation

46.18 inches (1174 mm)

    •   Average Annual Snowfall

28.5 inches (72 cm)

Seasonal Climate Summary

Spring (March-May)

    •   Average Temperature

45.3°F (7.4°C)

    •   Average Precipitation

10.71 inches (272 mm)

    •   Average Snowfall

3.2 inches (8 cm)

Summer (June-August)

    •   Average Temperature

69.3°F (20.7°C)

    •   Average Precipitation

11.11 inches (282 mm)

    •   Average Snowfall

0 inches (0 cm)

Fall (September-November)

    •   Average Temperature

52.9°F (11.6°C)

    •   Average Precipitation

11.64 inches (296 mm)

    •   Average Snowfall

0.6 inches (1.5 cm)

Winter (December-February)

    •   Average Temperature

30.8°F (-0.6°C)

    •   Average Precipitation

12.72 inches (323 mm)

    •   Average Snowfall

24.7 inches (62 cm)

Other Climate Data

    •   Average Number of Days with Precipitation

110

    •   Average Number of Days with Snow

20

    •   Average Annual Sunshine

2,675 hours

    •   Average Wind Speed

10.2 knots (18.9 km/h)

    •   Average Humidity

71%

Extreme Weather Events

    •   Record High Temperature

104°F (40°C)

    •   Record Low Temperature

-14°F (-25.6°C)

    •   Record 24-Hour Precipitation

8.57 inches (217.7 mm)

    •   Record Snowfall in a Single Storm

22.0 inches (55.9 cm)

Note

Climate data is based on long-term averages from 1991-2020.

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

    •   Lake Ronkonkoma is a kettle hole lake formed by a retreating glacier approximately 12,000 years ago.

    •   It is the largest natural freshwater lake on Long Island, with a surface area of 3.5 square miles.

    •   The lake is fed by underground springs and has a maximum depth of 100 feet.

Science

    •   In the 1950s, Lake Ronkonkoma became a site for nuclear experiments conducted by Brookhaven National Laboratory.

    •   The lake has been studied extensively for its unique ecosystem, including its diverse fish population and abundant waterfowl.

    •   It is home to the Lake Ronkonkoma Ecological Reserve, which protects a 500-acre wetland complex.

Personalities

    •   The lake was named after Sachem Ronkonkoma, a Native American chief who lived in the area.

    •   In the 19th century, the lake became a popular summer resort, attracting visitors such as Walt Whitman and Henry David Thoreau.

    •   Today, the lake is a popular destination for fishing, boating, and birdwatching.

Tourist Attractions
1.Adventureland

is a family-friendly amusement park with over 30 rides, shows, and attractions. It's a great place to spend a day with the kids, and it's just a short drive from Lake Ronkonkoma.

2.Smith Haven Mall

is one of the largest shopping malls on Long Island, with over 150 stores and restaurants. It's a great place to find everything you need, from clothes to electronics to home goods.

3.The Long Island Aquarium & Exhibition Center

is a world-class aquarium with over 100 exhibits and 20,000 animals. It's a great place to learn about marine life, and it's fun for all ages.

Nearby Cities:

Ronkonkoma, NY
Lake Grove, NYNesconset, NY
Centereach, NYIslandia, NY
Holbrook, NYVillage of the Branch, NY
Saint James, NYHauppauge, NY
Smithtown, NYBohemia, NY
Holtsville, NYCentral Islip, NY
Farmingville, NYHead of the Harbor, NY
Selden, NYOakdale, NY
Brooklyn, NY
Queens, NYManhattan, NY
Manhattan, NYStaten Island, NY
Newark, NJJersey City, NJ
Jamaica, NYYonkers, NY
Worcester, MAProvidence, RI
East Flatbush, NY