Monthly Historical AveragesCastaic, CA
Average Temperature
High
22°
Feels 22
Low
8°
Feels 7
Average Precipitation
2 Days
13.7mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, March 18, 2026
Day
36°Feels 36
Wind
16 km/h NE
Gust
24 km/h
Humidity
14%
P.O.P
0%
Night
18°Feels 18
Wind
10 km/h NE
Gust
15 km/h
Humidity
52%
P.O.P
0%
Historical AveragesMar 18
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity