S
M
T
W
T
F
S
28
57°
47°
29
58°
48°
30
57°
47°
1
58°
46°
2
57°
47°
3
56°
46°
4
57°
47°
5
58°
47°
6
56°
46°
7
56°
47°
8
58°
48°
9
58°
48°
10
57°
47°
11
57°
41°
12
58°
48°
13
59°
48°
14
59°
47°
15
58°
48°
16
60°
48°
17
59°
47°
18
60°
49°
19
59°
48°
20
60°
49°
21
59°
48°
22
60°
49°
23
59°
48°
24
62°
51°
25
62°
50°
26
Hist. Avg.
63°
51°
27
Hist. Avg.
63°
51°
28
Hist. Avg.
63°
51°
29
Hist. Avg.
63°
51°
30
Hist. Avg.
63°
51°
31
Hist. Avg.
63°
51°
1
Hist. Avg.
63°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Port William
Port William's July 2026 forecast shows daily high temperatures ranging from 56° to 62°, with overnight lows between 41° and 51°. 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.
