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
ForecastWednesday, April 1, 2026
Day
18°Feels 18
Wind
22 km/h SW
Gust
33 km/h
Humidity
63%
P.O.P
80%
Rain
~1 mm
Night
11°Feels 9
Wind
20 km/h SW
Gust
30 km/h
Humidity
87%
P.O.P
40%
Rain
~1 mm
Historical AveragesApr 1
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity