S
M
T
W
T
F
S
28
82°
59°
29
79°
55°
30
82°
54°
1
84°
54°
2
90°
57°
3
73°
59°
4
86°
55°
5
99°
68°
6
90°
68°
7
84°
63°
8
86°
61°
9
90°
57°
10
95°
72°
11
99°
76°
12
105°
73°
13
105°
72°
14
102°
71°
15
95°
67°
16
90°
66°
17
92°
59°
18
87°
63°
19
87°
65°
20
85°
57°
21
78°
59°
22
80°
60°
23
85°
59°
24
88°
64°
25
81°
63°
26
81°
64°
27
86°
63°
28
88°
63°
29
84°
64°
30
88°
62°
31
87°
64°
1
89°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in North Spearfish
North Spearfish's July 2026 forecast shows daily high temperatures ranging from 78° to 105°, with overnight lows between 57° and 76°. The average high for July is 89° 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 North Spearfish. See also: August | September | October.