S
M
T
W
T
F
S
26
89°
69°
27
90°
70°
28
90°
70°
29
92°
71°
30
95°
72°
31
94°
73°
1
90°
73°
2
90°
72°
3
91°
73°
4
90°
71°
5
93°
73°
6
95°
69°
7
90°
69°
8
90°
71°
9
91°
71°
10
90°
73°
11
93°
70°
12
92°
71°
13
91°
72°
14
90°
71°
15
90°
72°
16
91°
70°
17
90°
71°
18
90°
73°
19
91°
72°
20
89°
72°
21
90°
73°
22
93°
73°
23
94°
72°
24
95°
72°
25
95°
73°
26
94°
72°
27
94°
72°
28
93°
71°
29
93°
72°
30
94°
70°
31
92°
69°
1
91°
68°
2
91°
68°
3
90°
69°
4
91°
71°
5
93°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Arcola
Arcola's August 2026 forecast shows daily high temperatures ranging from 89° to 95°, with overnight lows between 68° and 73°. The average high for August is 92° 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 Arcola. See also: September | October | November.
