S
M
T
W
T
F
S
27
75°
46°
28
69°
54°
29
80°
53°
30
80°
44°
1
64°
38°
2
63°
33°
3
70°
38°
4
70°
33°
5
76°
39°
6
78°
43°
7
73°
37°
8
70°
41°
9
78°
41°
10
81°
42°
11
52°
44°
12
46°
42°
13
45°
41°
14
57°
38°
15
48°
43°
16
55°
31°
17
79°
29°
18
67°
32°
19
68°
25°
20
72°
35°
21
64°
42°
22
74°
55°
23
73°
41°
24
55°
29°
25
45°
30°
26
44°
30°
27
51°
34°
28
54°
32°
29
51°
33°
30
47°
32°
31
50°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Bismarck
Bismarck's October 2026 forecast shows daily high temperatures ranging from 44° to 74°, with overnight lows between 29° and 55°. The average high for October is 57° with an average low of 36°. 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 Bismarck. See also: November | December | January.
