S
M
T
W
T
F
S
26
86°
68°
27
87°
67°
28
87°
68°
29
88°
66°
30
86°
67°
31
85°
66°
1
82°
64°
2
79°
63°
3
81°
66°
4
82°
65°
5
84°
66°
6
86°
66°
7
86°
67°
8
84°
67°
9
85°
66°
10
86°
66°
11
85°
65°
12
86°
66°
13
86°
67°
14
88°
63°
15
86°
63°
16
85°
62°
17
82°
61°
18
83°
60°
19
84°
56°
20
79°
54°
21
78°
54°
22
78°
55°
23
79°
55°
24
79°
57°
25
80°
56°
26
84°
59°
27
86°
62°
28
86°
60°
29
84°
55°
30
79°
55°
31
76°
56°
1
76°
53°
2
77°
51°
3
76°
54°
4
78°
59°
5
77°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Columbus Junction
Columbus Junction's August 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 51° and 68°. The average high for August is 83° with an average low of 61°. 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 Columbus Junction. See also: September | October | November.
