Monthly Historical AveragesRancho Santa Margarita, CA
Average Temperature
High
24°
Feels 24
Low
12°
Feels 11
Average Precipitation
1 Days
3.4mm
0cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastSaturday, May 16, 2026
Day
22°Feels 22
Wind
15 km/h SW
Gust
22 km/h
Humidity
53%
P.O.P
30%
Night
12°Feels 12
Wind
11 km/h S
Gust
16 km/h
Humidity
89%
P.O.P
10%
Historical AveragesMay 16
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity