S
M
T
W
T
F
S
28
52°
45°
29
55°
46°
30
58°
47°
1
58°
46°
2
55°
46°
3
53°
47°
4
54°
45°
5
57°
47°
6
58°
48°
7
59°
48°
8
59°
47°
9
56°
47°
10
55°
46°
11
55°
45°
12
56°
45°
13
57°
47°
14
56°
45°
15
57°
49°
16
60°
49°
17
61°
45°
18
60°
49°
19
60°
49°
20
58°
48°
21
57°
48°
22
59°
49°
23
61°
46°
24
59°
49°
25
61°
48°
26
59°
50°
27
61°
49°
28
61°
50°
29
60°
49°
30
62°
50°
31
61°
50°
1
61°
44°
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 52° to 62°, with overnight lows between 44° and 50°. The average high for July is 58° with an average low of 47°. 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.
