S
M
T
W
T
F
S
28
90°
69°
29
90°
75°
30
91°
76°
1
90°
71°
2
91°
71°
3
89°
66°
4
84°
66°
5
85°
68°
6
85°
67°
7
87°
64°
8
87°
66°
9
87°
68°
10
85°
66°
11
85°
65°
12
86°
63°
13
90°
67°
14
92°
68°
15
93°
69°
16
94°
72°
17
94°
72°
18
92°
70°
19
95°
70°
20
90°
65°
21
87°
64°
22
88°
63°
23
90°
65°
24
84°
65°
25
97°
75°
26
91°
70°
27
85°
68°
28
86°
68°
29
79°
66°
30
80°
66°
31
81°
67°
1
81°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Ottumwa
Ottumwa's July 2026 forecast shows daily high temperatures ranging from 79° to 97°, with overnight lows between 63° and 75°. The average high for July is 88° with an average low of 68°. 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 Ottumwa. See also: August | September | October.
