S
M
T
W
T
F
S
28
84°
57°
29
83°
57°
30
82°
52°
1
85°
55°
2
81°
57°
3
82°
63°
4
88°
58°
5
94°
61°
6
87°
64°
7
71°
58°
8
78°
56°
9
90°
60°
10
91°
63°
11
101°
66°
12
103°
69°
13
105°
70°
14
98°
69°
15
97°
68°
16
101°
70°
17
85°
64°
18
93°
55°
19
101°
69°
20
90°
64°
21
79°
60°
22
84°
53°
23
85°
55°
24
105°
62°
25
103°
61°
26
107°
67°
27
94°
67°
28
98°
65°
29
101°
67°
30
85°
65°
31
89°
63°
1
87°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Bismarck
Bismarck's July 2026 forecast shows daily high temperatures ranging from 85° to 101°, with overnight lows between 63° and 67°. The average high for July is 92° with an average low of 65°. 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 Bismarck. See also: August | September | October.