S
M
T
W
T
F
S
28
90°
70°
29
93°
75°
30
95°
77°
1
93°
72°
2
92°
73°
3
90°
70°
4
89°
69°
5
86°
67°
6
82°
68°
7
83°
66°
8
86°
67°
9
85°
66°
10
87°
67°
11
87°
66°
12
86°
65°
13
85°
66°
14
84°
63°
15
80°
61°
16
83°
64°
17
79°
60°
18
80°
66°
19
84°
67°
20
85°
67°
21
87°
66°
22
87°
68°
23
88°
68°
24
87°
67°
25
85°
68°
26
86°
68°
27
87°
67°
28
87°
68°
29
88°
66°
30
86°
67°
31
85°
66°
1
82°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Columbus Junction
Columbus Junction's July 2026 forecast shows daily high temperatures ranging from 79° to 93°, with overnight lows between 60° and 73°. The average high for July is 86° with an average low of 67°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Columbus Junction. See also: August | September | October.
