Monthly Historical AveragesLa Mesa, CA
Average Temperature
High
21°
Feels 21
Low
10°
Feels 9
Average Precipitation
3 Days
14.9mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, March 18, 2026
Day
35°Feels 35
Wind
17 km/h W
Gust
25 km/h
Humidity
20%
P.O.P
0%
Night
15°Feels 15
Wind
7 km/h E
Gust
10 km/h
Humidity
56%
P.O.P
0%
Historical AveragesMar 18
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity