Monthly Historical AveragesUnion City, CA
Average Temperature
High
15°
Feels 14
Low
5°
Feels 4
Average Precipitation
7 Days
48.8mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSaturday, January 10, 2026
Day
14°Feels 14
Wind
7 km/h E
Gust
11 km/h
Humidity
54%
P.O.P
20%
Night
4°Feels 3
Wind
7 km/h NE
Gust
10 km/h
Humidity
81%
P.O.P
20%
Historical AveragesJan 10
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity