S
M
T
W
T
F
S
26
69°
55°
27
66°
56°
28
64°
52°
29
67°
55°
30
66°
54°
31
66°
55°
1
68°
55°
2
68°
54°
3
64°
54°
4
64°
52°
5
65°
54°
6
64°
54°
7
64°
52°
8
65°
50°
9
64°
54°
10
64°
51°
11
65°
50°
12
67°
54°
13
65°
55°
14
66°
55°
15
67°
54°
16
67°
55°
17
65°
54°
18
64°
52°
19
63°
54°
20
67°
51°
21
64°
54°
22
65°
54°
23
64°
53°
24
67°
54°
25
63°
52°
26
64°
51°
27
63°
52°
28
66°
52°
29
67°
51°
30
67°
53°
31
66°
52°
1
66°
53°
2
65°
48°
3
66°
54°
4
66°
54°
5
67°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Port William
Port William's August 2026 forecast shows daily high temperatures ranging from 63° to 69°, with overnight lows between 48° and 56°. The average high for August is 65° with an average low of 53°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Port William. See also: September | October | November.
