S
M
T
W
T
F
S
26
79°
56°
27
74°
51°
28
74°
52°
29
75°
58°
30
78°
58°
31
74°
55°
1
76°
53°
2
76°
53°
3
74°
50°
4
74°
52°
5
73°
51°
6
72°
52°
7
73°
53°
8
75°
57°
9
74°
57°
10
78°
56°
11
80°
58°
12
80°
59°
13
79°
59°
14
79°
60°
15
78°
55°
16
76°
54°
17
78°
50°
18
71°
50°
19
69°
53°
20
70°
53°
21
73°
54°
22
72°
58°
23
75°
56°
24
73°
48°
25
75°
50°
26
68°
49°
27
69°
47°
28
69°
47°
29
69°
54°
30
76°
47°
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 68° to 80°, with overnight lows between 47° and 60°. The average high for August is 74° 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 Sudbury. See also: September | October | November.