S
M
T
W
T
F
S
28
63°
57°
29
63°
57°
30
61°
55°
1
63°
55°
2
64°
54°
3
63°
57°
4
68°
61°
5
68°
59°
6
66°
59°
7
70°
57°
8
70°
57°
9
64°
55°
10
75°
63°
11
79°
63°
12
77°
63°
13
75°
57°
14
73°
55°
15
76°
56°
16
74°
57°
17
71°
57°
18
69°
55°
19
68°
55°
20
66°
56°
21
69°
55°
22
68°
56°
23
70°
56°
24
73°
56°
25
70°
56°
26
71°
57°
27
64°
52°
28
64°
52°
29
65°
54°
30
65°
52°
31
66°
55°
1
66°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Port William
Port William's July 2026 forecast shows daily high temperatures ranging from 64° to 76°, with overnight lows between 52° and 57°. The average high for July is 69° with an average low of 55°. 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 William. See also: August | September | October.
