S
M
T
W
T
F
S
26
77°
58°
27
81°
58°
28
76°
55°
29
74°
54°
30
81°
59°
31
75°
53°
1
80°
59°
2
82°
58°
3
76°
52°
4
75°
51°
5
76°
52°
6
74°
52°
7
81°
51°
8
76°
51°
9
77°
54°
10
80°
56°
11
80°
52°
12
79°
56°
13
80°
59°
14
82°
59°
15
77°
57°
16
81°
49°
17
74°
49°
18
73°
50°
19
73°
50°
20
72°
51°
21
71°
49°
22
71°
55°
23
73°
57°
24
79°
56°
25
81°
50°
26
81°
46°
27
72°
47°
28
70°
46°
29
70°
48°
30
71°
54°
31
75°
56°
1
79°
55°
2
79°
52°
3
74°
47°
4
77°
52°
5
77°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Williamstown
Williamstown's August 2026 forecast shows daily high temperatures ranging from 70° to 82°, with overnight lows between 46° and 59°. The average high for August is 76° 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 Williamstown. See also: September | October | November.
