S
M
T
W
T
F
S
31
100°
71°
1
103°
72°
2
103°
71°
3
105°
70°
4
107°
73°
5
107°
75°
6
104°
78°
7
100°
78°
8
100°
73°
9
104°
73°
10
107°
73°
11
104°
76°
12
100°
81°
13
110°
81°
14
111°
83°
15
104°
84°
16
109°
83°
17
109°
79°
18
106°
77°
19
106°
75°
20
104°
75°
21
103°
76°
22
104°
71°
23
107°
76°
24
111°
79°
25
113°
78°
26
111°
78°
27
108°
76°
28
110°
75°
29
109°
73°
30
106°
76°
1
107°
80°
2
105°
80°
3
107°
81°
4
108°
82°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in San Luis
San Luis's June 2026 forecast shows daily high temperatures ranging from 103° to 113°, with overnight lows between 71° and 82°. The average high for June is 107° with an average low of 77°. 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 San Luis. See also: July | August | September.
