S
M
T
W
T
F
S
28
89°
69°
29
90°
75°
30
91°
76°
1
90°
75°
2
92°
73°
3
92°
72°
4
89°
70°
5
84°
66°
6
86°
61°
7
87°
66°
8
88°
70°
9
85°
68°
10
83°
66°
11
85°
66°
12
84°
68°
13
84°
68°
14
85°
65°
15
84°
67°
16
84°
66°
17
87°
66°
18
86°
65°
19
85°
69°
20
89°
68°
21
82°
63°
22
82°
63°
23
83°
66°
24
85°
65°
25
83°
67°
26
87°
69°
27
89°
70°
28
90°
70°
29
90°
69°
30
88°
70°
31
88°
69°
1
89°
70°
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 82° to 90°, with overnight lows between 61° and 70°. 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 Mason City. See also: August | September | October.
