S
M
T
W
T
F
S
26
80°
54°
27
80°
59°
28
81°
58°
29
81°
59°
30
80°
62°
31
82°
59°
1
80°
55°
2
78°
52°
3
72°
51°
4
70°
51°
5
71°
54°
6
75°
57°
7
77°
58°
8
79°
59°
9
79°
59°
10
80°
61°
11
79°
58°
12
77°
51°
13
Hist. Avg.
74°
54°
14
Hist. Avg.
74°
54°
15
Hist. Avg.
74°
54°
16
Hist. Avg.
74°
54°
17
Hist. Avg.
73°
54°
18
Hist. Avg.
73°
53°
19
Hist. Avg.
73°
53°
20
Hist. Avg.
72°
53°
21
Hist. Avg.
72°
53°
22
Hist. Avg.
72°
52°
23
Hist. Avg.
71°
52°
24
Hist. Avg.
71°
52°
25
Hist. Avg.
70°
51°
26
Hist. Avg.
70°
51°
27
Hist. Avg.
70°
51°
28
Hist. Avg.
69°
50°
29
Hist. Avg.
69°
50°
30
Hist. Avg.
69°
50°
31
Hist. Avg.
68°
50°
1
Hist. Avg.
68°
49°
2
Hist. Avg.
68°
49°
3
Hist. Avg.
67°
49°
4
Hist. Avg.
67°
48°
5
Hist. Avg.
67°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Sudbury
Sudbury's August 2026 forecast shows daily high temperatures ranging from 70° to 82°, with overnight lows between 51° and 62°. The average high for August is 78° with an average low of 57°. 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 Sudbury. See also: September | October | November.