Live Weather & Forecast
Weather in Union
New Jersey, United States · Real-time conditions & 3-day outlook
5°C
Feels like 3°C
41°F / Feels 36°F
Clear
Union, New Jersey
🌙 Nighttime
Updated: 2026-04-13 01:00
Humidity
93%
Wind
12.2 km/h S
Wind Gust
18.6 km/h
Pressure
1026 mb
Visibility
16 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
4°C
Wind Degree
189°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
165.9 μg/m³
NO₂
8.4 μg/m³
O₃
89 μg/m³
SO₂
4.3 μg/m³
PM 2.5
8.3 μg/m³
PM 10
9.5 μg/m³
Today's Hourly Forecast
24-hour breakdown for Union, New Jersey
12 AM
8°
Clear
1 AM
5°
Clear
2 AM
7°
Clear
3 AM
7°
Clear
4 AM
7°
Clear
5 AM
7°
Partly Cloudy
6 AM
7°
Clear
7 AM
9°
Mist
8 AM
11°
Overcast
9 AM
14°
Overcast
10 AM
17°
Partly Cloudy
11 AM
22°
Sunny
12 PM
25°
Sunny
1 PM
25°
Sunny
2 PM
24°
Partly Cloudy
3 PM
24°
Overcast
4 PM
24°
Sunny
5 PM
23°
Partly Cloudy
6 PM
23°
Overcast
7 PM
21°
Partly Cloudy
8 PM
20°
Partly Cloudy
9 PM
20°
Clear
10 PM
19°
Clear
11 PM
18°
Clear
3-Day Forecast
Daily overview for Union, New Jersey
Today
Partly Cloudy
29°
/
7°
🌧️ 0% chance of rain
💧 Avg. humidity: 78%
💨 Max wind: 28.1 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.4
🌅 Sunrise: 06:21 AM
🌇 Sunset: 07:35 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Patchy rain nearby
28°
/
15°
🌧️ 62% chance of rain
💧 Avg. humidity: 73%
💨 Max wind: 21.6 km/h
🌧️ Total precip: 0.37 mm
☀️ UV Index: 1.8
🌅 Sunrise: 06:20 AM
🌇 Sunset: 07:36 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Partly Cloudy
33°
/
20°
🌧️ 0% chance of rain
💧 Avg. humidity: 62%
💨 Max wind: 23.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.9
🌅 Sunrise: 06:18 AM
🌇 Sunset: 07:37 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Union
Plan your trip to Union, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Union?
Current conditions in Union: Clear, temperature 5°C, humidity 93%.
What is the best time to visit Union?
The best time to visit Union is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Union?
Union is located at approximately 40.7° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Union?
The wettest period in Union is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Union?
For visits to Union during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Union in?
Union is located in United States, in the state of New Jersey.
What are the public holidays in Union in 2026?
View the 2026 public holidays for Union on our Holidays page.
What are the GPS coordinates used for the weather forecast in Union?
The weather forecast for Union uses coordinates 40.6965, -74.2698.