S
M
T
W
T
F
S
31
81°
58°
1
72°
59°
2
76°
59°
3
76°
59°
4
76°
61°
5
76°
60°
6
76°
60°
7
75°
59°
8
77°
60°
9
81°
59°
10
82°
62°
11
81°
61°
12
81°
62°
13
82°
63°
14
79°
60°
15
82°
64°
16
82°
63°
17
83°
64°
18
83°
64°
19
82°
63°
20
83°
64°
21
83°
64°
22
82°
63°
23
84°
64°
24
84°
64°
25
83°
63°
26
82°
64°
27
83°
63°
28
81°
60°
29
80°
61°
30
82°
62°
1
83°
63°
2
84°
65°
3
84°
65°
4
83°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in La Mesa
La Mesa's June 2026 forecast shows daily high temperatures ranging from 72° to 84°, with overnight lows between 59° and 65°. The average high for June is 81° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in La Mesa. See also: July | August | September.