S
M
T
W
T
F
S
28
64°
52°
29
61°
53°
30
62°
56°
1
61°
56°
2
63°
55°
3
68°
55°
4
69°
58°
5
67°
57°
6
65°
57°
7
66°
51°
8
67°
52°
9
68°
54°
10
66°
53°
11
71°
53°
12
73°
54°
13
74°
55°
14
73°
57°
15
72°
55°
16
70°
56°
17
71°
57°
18
70°
56°
19
71°
57°
20
70°
58°
21
72°
58°
22
71°
57°
23
71°
57°
24
70°
56°
25
69°
57°
26
70°
57°
27
72°
58°
28
72°
58°
29
71°
57°
30
72°
58°
31
72°
59°
1
71°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Port San Luis
Port San Luis's July 2026 forecast shows daily high temperatures ranging from 65° to 74°, with overnight lows between 51° and 59°. The average high for July is 70° with an average low of 56°. 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 Port San Luis. See also: August | September | October.
