S
M
T
W
T
F
S
26
84°
56°
27
84°
61°
28
83°
69°
29
77°
67°
30
79°
66°
31
83°
62°
1
88°
65°
2
84°
70°
3
82°
65°
4
87°
59°
5
88°
63°
6
92°
73°
7
93°
72°
8
90°
70°
9
90°
69°
10
87°
61°
11
85°
68°
12
85°
65°
13
85°
66°
14
85°
62°
15
81°
61°
16
81°
58°
17
77°
67°
18
87°
67°
19
85°
69°
20
83°
62°
21
77°
62°
22
70°
66°
23
81°
67°
24
81°
61°
25
77°
58°
26
80°
62°
27
81°
67°
28
79°
59°
29
78°
59°
30
81°
65°
31
85°
66°
1
75°
60°
2
76°
60°
3
75°
58°
4
76°
58°
5
78°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Manchester
Manchester's August 2026 forecast shows daily high temperatures ranging from 75° to 85°, with overnight lows between 58° and 67°. The average high for August is 78° with an average low of 61°. 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 Manchester. See also: September | October | November.