Union weather
At 6:30 PM local time it was clear and 13°C (55°F). Little to no rain in the next 24 hours. Best months for weather: May–Oct. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Union, New Jersey, United States.
Current conditions
- Clouds
- 11%
- Chance of rain
- 0%
- Rain
- 0.0 mm/h
Hourly Forecast
Little to no rain in the next 24 hours
Daily Forecast
Best Time to Visit
Peak season May–OctOff season Dec–Mar
About Union weather
Is it raining in Union right now?
No. It’s clear and 13° right now. Little to no rain in the next 24 hours.
What’s the weather like in Union this week?
Over the next 7 days, expect highs of 16–22° and lows of 4–17°. Rain is likely on 2 of 7 days (Thursday, Friday). The driest day looks like Saturday.
Has it been raining in Union lately?
Barely. The past 7 days were mostly dry, with 0.0 mm of rain in total.
What should I pack for Union?
For the coming week, bring an umbrella or rain jacket and a warm layer for the evenings.
Union weather by month
When is the best time to visit Union?
Based on weather alone, the best time to visit Union is May–Oct, according to NASA's 2001–2025 climate averages. Dec–Mar tends to be the least pleasant. Average highs run from 3°C (37°F) in January to 29°C (85°F) in July.
What is the rainiest month in Union?
June is the wettest month, with about 117 mm (4.6 in) of rain on average. February is the driest, with about 80 mm (3.1 in).
What is the hottest month in Union?
July is the warmest, with average highs of 29°C (85°F) and lows of 19°C (67°F). January is the coolest, with highs of 3°C (37°F) and lows of -5°C (23°F).
Does Union have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is June at about 117 mm (4.6 in).
How warm is the sea in Union?
The sea is warmest in July at about 28°C (83°F) and coolest in January at about 3°C (37°F). It is comfortable for swimming (22°C or more) in Jun–Sep.
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), sea temperature from Open-Meteo Marine, forecast and current conditions from Open-Meteo. Page updated . How we rate months