S
M
T
W
T
F
S
26
94°
74°
27
94°
74°
28
92°
73°
29
91°
73°
30
90°
72°
31
88°
71°
1
85°
71°
2
87°
72°
3
90°
72°
4
90°
69°
5
90°
71°
6
89°
72°
7
89°
72°
8
83°
71°
9
84°
69°
10
84°
69°
11
85°
68°
12
87°
71°
13
89°
71°
14
89°
72°
15
90°
72°
16
92°
71°
17
90°
71°
18
91°
70°
19
91°
72°
20
90°
71°
21
82°
60°
22
81°
62°
23
81°
61°
24
82°
64°
25
84°
68°
26
89°
69°
27
90°
69°
28
91°
70°
29
91°
67°
30
90°
60°
31
81°
65°
1
82°
64°
2
88°
68°
3
90°
69°
4
90°
67°
5
89°
62°
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 81° to 94°, with overnight lows between 60° and 74°. The average high for August is 88° with an average low of 69°. 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.