Monthly Historical AveragesLa Mesa, CA
Average Temperature
High
20°
Feels 20
Low
8°
Feels 7
Average Precipitation
4 Days
22.8mm
0cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastFriday, January 9, 2026
Day
18°Feels 17
Wind
26 km/h NE
Gust
39 km/h
Humidity
15%
P.O.P
20%
Night
8°Feels 6
Wind
23 km/h N
Gust
34 km/h
Humidity
40%
P.O.P
0%
Historical AveragesJan 9
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity