S
M
T
W
T
F
S
26
92°
77°
27
92°
76°
28
91°
77°
29
89°
77°
30
89°
76°
31
90°
77°
1
91°
76°
2
90°
77°
3
90°
77°
4
91°
76°
5
89°
77°
6
90°
77°
7
92°
76°
8
91°
77°
9
91°
77°
10
90°
76°
11
90°
77°
12
89°
77°
13
89°
76°
14
90°
77°
15
89°
76°
16
89°
75°
17
91°
76°
18
91°
75°
19
92°
74°
20
91°
75°
21
90°
74°
22
91°
75°
23
90°
76°
24
90°
75°
25
91°
75°
26
91°
74°
27
92°
75°
28
91°
75°
29
91°
74°
30
92°
74°
31
92°
75°
1
91°
76°
2
91°
75°
3
92°
75°
4
91°
74°
5
92°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Iona
Iona's August 2026 forecast shows daily high temperatures ranging from 89° to 92°, with overnight lows between 74° and 77°. The average high for August is 91° with an average low of 76°. 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 Iona. See also: September | October | November.