Monthly Historical AveragesFoster City, CA
Average Temperature
High
19°
Feels 18
Low
9°
Feels 8
Average Precipitation
5 Days
26.2mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastSunday, April 19, 2026
Day
21°Feels 21
Wind
22 km/h NW
Gust
33 km/h
Humidity
45%
P.O.P
30%
Night
12°Feels 10
Wind
16 km/h W
Gust
24 km/h
Humidity
83%
P.O.P
20%
Historical AveragesApr 19
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity