S
M
T
W
T
F
S
26
70°
61°
27
72°
57°
28
80°
64°
29
83°
64°
30
71°
59°
31
71°
52°
1
72°
53°
2
72°
52°
3
78°
60°
4
80°
62°
5
72°
59°
6
65°
55°
7
71°
50°
8
80°
51°
9
78°
56°
10
76°
54°
11
82°
58°
12
88°
67°
13
91°
66°
14
80°
57°
15
72°
55°
16
69°
56°
17
70°
58°
18
71°
57°
19
74°
59°
20
75°
57°
21
76°
58°
22
65°
56°
23
68°
54°
24
66°
52°
25
68°
53°
26
66°
51°
27
64°
51°
28
64°
50°
29
65°
50°
30
67°
55°
31
63°
53°
1
65°
52°
2
68°
56°
3
68°
56°
4
67°
55°
5
67°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Sheffield
Sheffield's August 2026 forecast shows daily high temperatures ranging from 63° to 91°, with overnight lows between 50° and 67°. The average high for August is 71° with an average low of 56°. 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 Sheffield. See also: September | October | November.