Monthly Historical AveragesLake San Marcos, CA
Average Temperature
High
20°
Feels 20
Low
11°
Feels 10
Average Precipitation
3 Days
9.4mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastFriday, April 3, 2026
Day
21°Feels 21
Wind
15 km/h W
Gust
22 km/h
Humidity
40%
P.O.P
20%
Night
12°Feels 12
Wind
8 km/h NE
Gust
12 km/h
Humidity
82%
P.O.P
20%
Historical AveragesApr 3
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity