S
M
T
W
T
F
S
28
57°
47°
29
56°
44°
30
57°
46°
1
55°
47°
2
58°
48°
3
59°
49°
4
59°
48°
5
58°
48°
6
58°
47°
7
55°
47°
8
54°
46°
9
56°
48°
10
56°
48°
11
58°
47°
12
57°
49°
13
58°
48°
14
59°
47°
15
59°
49°
16
60°
49°
17
59°
48°
18
60°
49°
19
60°
49°
20
59°
48°
21
60°
48°
22
58°
43°
23
60°
49°
24
61°
49°
25
61°
48°
26
60°
49°
27
61°
49°
28
60°
48°
29
59°
49°
30
61°
47°
31
60°
48°
1
59°
49°
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 54° to 61°, with overnight lows between 43° and 49°. The average high for July is 58° with an average low of 48°. 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.
