Forecast Summary
The next few hours will be overcast, with tomorrow reaching 21°C and dropping to 11°C. The coming days will be mostly cloudy until evening.
Current Weather
17°
Overcast
Feels Like
16°
Min
11°
Max
21°
Compared to Yesterday
Unlock Historical Data
Compare today's weather with yesterday's data and track temperature trends over time.
Does this forecast seem accurate?
Hourly Forecast
Weather forecast for the next 48 hours.
UV Index
No protection needed
Humidity
Current air moisture level
Daylight Hours
13 hours 32 minutes of sunlight today
06:19
Sunrise
19:51
Sunset
Daily Forecast
Weather forecast for the next 8 days.
Thursday
Today
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
Upgrade to access real-time air quality data for Union City.
Frequently asked questions about weather in Union City
How warm does it get in Union City?
The warmest month in Union City is September, with average high temperatures of 24°C. The average temperature during this period is around 18°C.
How cold does it get in Union City?
The coldest month in Union City is December, with average low temperatures of 8°C. The average temperature during this period is around 11°C.
What is the wettest time of year in Union City?
The wettest month in Union City is January, with an average of 111mm of precipitation.
What is the driest time of year in Union City?
The driest month in Union City is August, with an average of 0mm of precipitation.
Explore more weather forecasts
- Fremont, California
- New York City, New York
- Newark, California
- Los Angeles, California
- Fairview, California
- Brooklyn, New York
- Hayward, California
- Chicago, Illinois
- Cherryland, California
- Houston, Texas
- Castro Valley, California
- Queens, New York
- Dublin, California
- Phoenix, Arizona
- San Lorenzo, California
- Philadelphia, Pennsylvania
Stay informed