S
M
T
W
T
F
S
28
83°
55°
29
78°
52°
30
82°
57°
1
79°
59°
2
82°
60°
3
87°
61°
4
78°
56°
5
80°
59°
6
86°
62°
7
87°
62°
8
86°
61°
9
83°
61°
10
84°
63°
11
83°
57°
12
87°
63°
13
80°
62°
14
83°
61°
15
84°
63°
16
79°
62°
17
79°
62°
18
82°
61°
19
87°
63°
20
88°
63°
21
88°
64°
22
89°
65°
23
90°
65°
24
89°
64°
25
88°
63°
26
89°
64°
27
85°
64°
28
88°
63°
29
88°
64°
30
87°
65°
31
89°
65°
1
88°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Spearfish
Spearfish's July 2026 forecast shows daily high temperatures ranging from 78° to 90°, with overnight lows between 52° and 65°. The average high for July is 85° with an average low of 62°. 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 Spearfish. See also: August | September | October.
