S
M
T
W
T
F
S
26
63°
57°
27
68°
59°
28
73°
64°
29
66°
57°
30
66°
54°
31
66°
54°
1
66°
55°
2
64°
57°
3
70°
57°
4
68°
57°
5
64°
55°
6
66°
54°
7
70°
54°
8
75°
57°
9
68°
54°
10
73°
48°
11
75°
59°
12
77°
64°
13
79°
66°
14
68°
61°
15
66°
55°
16
68°
55°
17
N/A
18
66°
55°
19
65°
54°
20
66°
49°
21
65°
48°
22
66°
50°
23
70°
52°
24
70°
55°
25
66°
54°
26
66°
53°
27
67°
52°
28
65°
54°
29
67°
55°
30
64°
54°
31
64°
55°
1
65°
55°
2
64°
54°
3
63°
54°
4
63°
52°
5
65°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Shannon
Shannon's August 2026 forecast shows daily high temperatures ranging from 63° to 70°, with overnight lows between 48° and 55°. The average high for August is 66° 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 Shannon. See also: September | October | November.
