S
M
T
W
T
F
S
27
64°
57°
28
72°
57°
29
68°
52°
30
73°
65°
1
67°
43°
2
66°
38°
3
73°
43°
4
69°
44°
5
74°
38°
6
81°
51°
7
76°
47°
8
73°
43°
9
79°
48°
10
86°
55°
11
89°
56°
12
87°
59°
13
67°
47°
14
56°
43°
15
55°
44°
16
49°
30°
17
57°
38°
18
64°
42°
19
65°
42°
20
66°
48°
21
67°
52°
22
64°
47°
23
62°
46°
24
61°
42°
25
56°
41°
26
57°
40°
27
56°
39°
28
43°
24°
29
50°
39°
30
55°
37°
31
58°
38°
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 43° to 67°, with overnight lows between 24° and 52°. The average high for October is 58° with an average low of 41°. 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.
