S
M
T
W
T
F
S
27
74°
50°
28
79°
45°
29
84°
45°
30
80°
66°
1
86°
62°
2
73°
49°
3
74°
43°
4
80°
44°
5
74°
42°
6
77°
44°
7
87°
51°
8
82°
45°
9
87°
50°
10
82°
52°
11
84°
48°
12
91°
63°
13
92°
66°
14
79°
65°
15
75°
54°
16
56°
45°
17
57°
37°
18
65°
38°
19
70°
37°
20
72°
39°
21
75°
41°
22
76°
42°
23
75°
46°
24
74°
46°
25
80°
48°
26
77°
50°
27
73°
52°
28
77°
54°
29
80°
52°
30
77°
55°
31
69°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Mason City
Mason City's October 2026 forecast shows daily high temperatures ranging from 69° to 80°, with overnight lows between 48° and 55°. The average high for October is 76° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Mason City. See also: November | December | January.
