Our Proprietary 10-Day Forecast

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Current warnings over Union, New Jersey
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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 Union, New Jersey 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 Union, New Jersey 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 Union County, NJ

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 Union, New Jersey

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 Union, NJ 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 Union, NJ

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 Union, NJ, 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 Union, New Jersey

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 Union County, New Jersey

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)
Union, NJ Climate Summary

General Climate

    •   Humid subtropical climate with hot, humid summers and cold, wet winters.
    •   Precipitation is well-distributed throughout the year.

Temperature

    •   Average Annual Temperature

55.2°F (12.9°C)

    •   Average Summer Temperature (June-August)

75.6°F (24.2°C)

    •   Average Winter Temperature (December-February)

34.2°F (1.2°C)

    •   Record High Temperature

106°F (41°C)

    •   Record Low Temperature

-15°F (-26°C)

Precipitation

    •   Average Annual Precipitation

46.3 inches (117.6 cm)

    •   Average Monthly Precipitation

3.9 inches (9.9 cm)

    •   Wettest Month

July (4.8 inches)

    •   Driest Month

February (2.7 inches)

Snowfall

    •   Average Annual Snowfall

22.5 inches (57.2 cm)

    •   Heaviest Snowfall in a Single Season

72.2 inches (183.4 cm)

Sunshine

    •   Average Annual Sunshine

2,650 hours

    •   Sunniest Month

July (310 hours)

    •   Cloudiest Month

December (160 hours)

Wind

    •   Prevailing Wind Direction

West-southwest

    •   Average Wind Speed

10.2 mph (16.4 km/h)

Other Climate Features

    •   Growing Season

190 days

    •   Hardiness Zone

6b

    •   Average Relative Humidity

70%

    •   Average Number of Thunderstorm Days

26

    •   Average Number of Foggy Days

10

Climate Change Impacts

    •   Increased frequency and intensity of extreme weather events, such as heat waves, heavy rainfall, and droughts.
    •   Rising temperatures, leading to longer and hotter summers.
    •   Changes in precipitation patterns, with more intense storms and drier periods.
    •   Increased sea level rise, posing risks to coastal areas.

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

    •   Union is home to the Watchung Reservation, a 2,000-acre park with diverse flora and fauna, including the endangered Indiana bat.

    •   The Rahway River, which flows through Union, is a major migratory route for birds and fish.

Science

    •   The Union County College Observatory, located on campus, is one of the largest public observatories in New Jersey.

    •   Union is the birthplace of the Union Carbide Corporation, a major chemical and industrial company.

Personalities

    •   The renowned physicist Albert Einstein lived in Union for a brief period in 1933.

    •   The inventor Thomas Edison had a laboratory in Union, where he developed the carbon filament for the incandescent light bulb.

    •   The actress and singer Barbra Streisand grew up in Union.

Tourist Attractions
1. Liberty State Park: Located just across the Hudson River from Manhattan, this park offers stunning views of the Statue of Liberty and the New York City skyline. It also has a variety of activities to enjoy, such as walking trails, bike paths, and a playground.

2. Kean University: This university is home to the Kean University Galleries, which feature a variety of art exhibitions throughout the year. The campus also has a beautiful arboretum with a variety of trees and flowers.

3. The Union County Performing Arts Center: This performing arts center hosts a variety of shows, including Broadway musicals, concerts, and dance performances. It is a great place to catch a show and enjoy a night out.

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