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Union County weather
Live local weather, warnings, forecast timing, wind, humidity, and weather alerts that may affect your day.
Hourly forecast
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Tap a day for details
Overnight
73°F
Mostly Cloudy
Mostly cloudy, with a low around 73. Southwest wind around 3 mph.
Wind: 3 mph SW
Saturday
91°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 2pm. Mostly sunny. High near 91, with temperatures falling to around 88 in the afternoon. Heat index values as high as 99. Southwest wind 3 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Wind: 3 to 10 mph SW
Saturday Night
73°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. Southwest wind 3 to 8 mph. Chance of precipitation is 20%.
Wind: 3 to 8 mph SW
Sunday
91°F
Mostly Sunny
Mostly sunny. High near 91, with temperatures falling to around 89 in the afternoon. Heat index values as high as 96. West wind 3 to 9 mph.
Wind: 3 to 9 mph W
Sunday Night
71°F
Mostly Clear
Mostly clear, with a low around 71. Northwest wind 1 to 7 mph.
Wind: 1 to 7 mph NW
Monday
92°F
Sunny
Sunny, with a high near 92.
Wind: 0 to 8 mph W
Monday Night
74°F
Partly Cloudy
Partly cloudy, with a low around 74.
Wind: 7 mph W
Tuesday
90°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
Wind: 5 to 9 mph W
Tuesday Night
71°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Wind: 3 to 8 mph W
Wednesday
87°F
Slight Chance Rain Showers
A slight chance of rain showers. Partly sunny, with a high near 87.
Wind: 3 to 7 mph NWOfficial NWS alerts
Union CountyModerate Heat Advisory Western Passaic; Eastern Passaic; Hudson; Western Bergen; Eastern Bergen; Western Essex; Eastern Essex; Western Union; Eastern Union
Heat Advisory issued August 8 at 12:58AM EDT until August 8 at 8:00PM EDT by NWS Upton NY
* WHAT...Heat index values up to 96.
* WHERE...Eastern Bergen, Eastern Essex, Eastern Passaic, Eastern
Union, Hudson, Western Bergen, Western Essex, Western Passaic, and
Western Union Counties.
* WHEN...Until 8 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Instructions: A Heat Advisory is issued when the combination of heat and humidity
is expected to make it feel like it is 95 to 99 degrees for two or
more consecutive days, or 100 to 104 degrees for any length of time.
Seniors and those with chronic health problems or mental health
conditions are at an increased risk. Homes without air conditioning
can be much hotter than outdoor temperatures.
Use air conditioning to stay cool at home or go to a place that has
air conditioning. If you don't have home air conditioning, continue
to seek out cool spaces each day as long as it remains hot, and for a
few days after if your home is still hot. Check on vulnerable
friends, family members and neighbors.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! In cases of heat stroke call 9 1 1.
Unknown Air Quality Alert Eastern Passaic; Hudson; Western Bergen; Eastern Bergen; Western Essex; Eastern Essex; Western Union; Eastern Union
Air Quality Alert issued August 7 at 11:26PM EDT by NWS Upton NY
The New Jersey Department of Environmental Protection has issued an
Air Quality Action Day for the following counties:
Bergen, Passaic, Hudson, Essex, Union.
from 11 AM to 11 PM EDT Saturday.
An Air Quality Action Day means that Ground Level Ozone within the
region may approach or exceed unhealthy standards.
For additional information, please visit the New Jersey Department
of Environmental Protection Web site at https://dep.nj.gov/airmon
Check another NJ area
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