S
M
T
W
T
F
S
28
78°
55°
29
78°
56°
30
79°
60°
1
80°
57°
2
79°
54°
3
78°
55°
4
76°
55°
5
77°
56°
6
79°
57°
7
79°
58°
8
80°
62°
9
80°
59°
10
81°
59°
11
84°
64°
12
86°
64°
13
83°
61°
14
86°
65°
15
85°
64°
16
86°
65°
17
87°
66°
18
87°
65°
19
86°
65°
20
87°
66°
21
87°
66°
22
86°
65°
23
86°
61°
24
85°
56°
25
81°
56°
26
77°
57°
27
78°
55°
28
77°
56°
29
77°
55°
30
78°
57°
31
78°
58°
1
79°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Mason City
Mason City's July 2026 forecast shows daily high temperatures ranging from 76° to 87°, with overnight lows between 54° and 66°. The average high for July is 81° with an average low of 60°. 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 Mason City. See also: August | September | October.
