S
M
T
W
T
F
S
28
107°
71°
29
106°
72°
30
106°
76°
1
109°
79°
2
110°
78°
3
107°
77°
4
108°
82°
5
109°
82°
6
109°
82°
7
109°
81°
8
108°
82°
9
107°
81°
10
104°
81°
11
105°
82°
12
105°
82°
13
108°
81°
14
107°
83°
15
107°
83°
16
105°
82°
17
105°
83°
18
107°
83°
19
108°
84°
20
108°
85°
21
109°
84°
22
109°
85°
23
108°
85°
24
107°
84°
25
106°
84°
26
107°
83°
27
106°
84°
28
106°
84°
29
107°
80°
30
105°
80°
31
106°
79°
1
105°
81°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in San Luis
San Luis's July 2026 forecast shows daily high temperatures ranging from 104° to 110°, with overnight lows between 71° and 85°. The average high for July is 107° with an average low of 81°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in San Luis. See also: August | September | October.
