S
M
T
W
T
F
S
26
72°
50°
27
71°
49°
28
73°
53°
29
74°
51°
30
73°
52°
31
76°
52°
1
76°
56°
2
77°
58°
3
77°
54°
4
75°
54°
5
77°
55°
6
77°
59°
7
79°
56°
8
79°
60°
9
80°
61°
10
79°
52°
11
76°
49°
12
71°
52°
13
73°
55°
14
74°
50°
15
72°
55°
16
80°
58°
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 71° to 80°, with overnight lows between 49° and 61°. The average high for August is 76° with an average low of 54°. 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.