S
M
T
W
T
F
S
28
56°
47°
29
57°
47°
30
57°
46°
1
56°
40°
2
55°
46°
3
55°
47°
4
57°
47°
5
58°
46°
6
58°
48°
7
57°
48°
8
58°
46°
9
59°
47°
10
56°
48°
11
59°
47°
12
57°
49°
13
58°
47°
14
59°
48°
15
59°
48°
16
Hist. Avg.
62°
51°
17
Hist. Avg.
62°
51°
18
Hist. Avg.
62°
51°
19
Hist. Avg.
62°
51°
20
Hist. Avg.
62°
51°
21
Hist. Avg.
62°
51°
22
Hist. Avg.
62°
51°
23
Hist. Avg.
63°
51°
24
Hist. Avg.
63°
51°
25
Hist. Avg.
63°
51°
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 55° to 59°, with overnight lows between 40° and 49°. The average high for July is 57° 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.
