S
M
T
W
T
F
S
26
88°
71°
27
89°
71°
28
88°
72°
29
88°
72°
30
89°
71°
31
89°
74°
1
90°
73°
2
89°
74°
3
92°
74°
4
93°
73°
5
93°
74°
6
91°
74°
7
91°
73°
8
92°
74°
9
89°
74°
10
90°
73°
11
89°
72°
12
89°
73°
13
93°
73°
14
93°
72°
15
92°
73°
16
89°
72°
17
93°
72°
18
94°
72°
19
94°
73°
20
93°
70°
21
92°
72°
22
94°
71°
23
93°
71°
24
93°
70°
25
92°
67°
26
89°
67°
27
88°
66°
28
88°
66°
29
89°
67°
30
88°
68°
31
89°
66°
1
87°
68°
2
87°
65°
3
91°
69°
4
91°
69°
5
90°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Shannon
Shannon's August 2026 forecast shows daily high temperatures ranging from 87° to 94°, with overnight lows between 65° and 74°. The average high for August is 91° with an average low of 71°. 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 Shannon. See also: September | October | November.
