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December 15th, 2025 :: 10:25 pm PST   

Local Weather Report for
Union City
California, United States

 Union City Weather Forecast Summary  
 
Today
Dec 15th
Tuesday
Dec 16th
Wednesday
Dec 17th
Thursday
Dec 18th
Friday
Dec 19th
Cloudy Cloudy Cloudy Cloudy Cloudy
63°F
66°F
54°F
65°F
54°F
64°F
52°F
63°F
53°F
 
 Union City Detailed Weather Forecast  
 
Tuesday, December 16th, 2025
Overnight Temperature: 54°F
Cloudy.
Morning Temperature: 63°F
A mix of cloud and sun.
Afternoon Temperature: 62°F
A mix of cloud and sun.
Evening Temperature: 61°F
Cloudy.
Wednesday, December 17th, 2025
Overnight Temperature: 61°F
Cloudy.
Morning Temperature: 63°F
Cloudy with a chance of showers.
Afternoon Temperature: 60°F
Sunny.
Evening Temperature: 55°F
Mostly clear.
Thursday, December 18th, 2025
Overnight Temperature: 52°F
A mix of cloudy and clear skies.
Morning Temperature: 60°F
A mix of cloud and sun.
Afternoon Temperature: 60°F
Cloudy.
Evening Temperature: 55°F
Cloudy.
Friday, December 19th, 2025
Overnight Temperature: 53°F
A mix of cloudy and clear skies.
Morning Temperature: 61°F
Cloudy.
Afternoon Temperature: 61°F
Cloudy.
Evening Temperature: 58°F
Cloudy with a chance of showers.
Saturday, December 20th, 2025
Overnight Temperature: 58°F
Cloudy with a chance of showers.
Morning Temperature: 63°F
Cloudy.
Afternoon Temperature: 62°F
Cloudy.
Evening Temperature: 58°F
Cloudy with showers likely.
Sunday, December 21st, 2025
Overnight Temperature: 59°F
Cloudy with showers likely.
Morning Temperature: 59°F
Cloudy with showers likely.
Afternoon Temperature: 59°F
Cloudy with showers likely.
Evening Temperature: 57°F
Cloudy with showers likely.
Monday, December 22nd, 2025
Overnight Temperature: 52°F
Cloudy with showers likely.
Morning Temperature: 54°F
Cloudy with showers likely.
Afternoon Temperature: 53°F
Cloudy with showers likely.
Evening Temperature: 53°F
Cloudy with a slight chance of showers.
Tuesday, December 23rd, 2025
Overnight Temperature: 53°F
Cloudy.
Morning Temperature: 58°F
Cloudy with showers. Windy.
Afternoon Temperature: 57°F
Cloudy with a few showers. Windy.
Evening Temperature: 54°F
Cloudy.





 

  [ Local Weather Report ]
Newark, CA 
8:47 PM  46°F
 
 
Hayward, CA 
8:54 PM  48°F
 
 
Dublin, CA 
8:53 PM  45°F
 
 
Pleasanton, CA 
8:53 PM  45°F
 
 
Palo Alto, CA 
8:47 PM  46°F
 
 
East Palo Alto, CA 
8:47 PM  46°F
 
 
San Leandro, CA 
8:54 PM  48°F
 
 
Moffett, CA 
8:50 PM  48°F
 
 
Livermore, CA 
8:53 PM  45°F
 
 
Oakland, CA 
8:53 PM  46°F
 

 
This WeatherCity Weather Forecast for Union City, California, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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