S
M
T
W
T
F
S
28
64°
42°
29
59°
43°
30
58°
44°
1
52°
45°
2
50°
48°
3
57°
48°
4
48°
41°
5
50°
43°
6
68°
46°
7
65°
46°
8
55°
46°
9
55°
41°
10
62°
43°
11
57°
43°
12
58°
41°
13
56°
42°
14
55°
41°
15
57°
44°
16
58°
43°
17
61°
44°
18
57°
45°
19
58°
46°
20
57°
43°
21
58°
42°
22
58°
42°
23
59°
44°
24
58°
46°
25
58°
46°
26
59°
46°
27
59°
47°
28
58°
47°
29
59°
46°
30
59°
47°
31
58°
47°
1
59°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Port O'Brien
Port O'Brien's July 2026 forecast shows daily high temperatures ranging from 48° to 68°, with overnight lows between 41° and 47°. The average high for July is 58° with an average low of 44°. 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 O'Brien. See also: August | September | October.
