S
M
T
W
T
F
S
28
65°
35°
29
69°
39°
30
71°
40°
1
74°
41°
2
75°
42°
3
75°
43°
4
76°
40°
5
75°
41°
6
73°
41°
7
74°
40°
8
71°
40°
9
65°
39°
10
70°
39°
11
67°
38°
12
69°
41°
13
70°
43°
14
69°
36°
15
65°
39°
16
67°
39°
17
68°
35°
18
66°
36°
19
66°
36°
20
67°
37°
21
67°
41°
22
75°
42°
23
69°
41°
24
71°
41°
25
73°
39°
26
68°
41°
27
67°
43°
28
71°
41°
29
68°
42°
30
73°
43°
31
74°
42°
1
69°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Keystone
Keystone's July 2026 forecast shows daily high temperatures ranging from 65° to 76°, with overnight lows between 35° and 43°. The average high for July is 70° with an average low of 40°. 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 Keystone. See also: August | September | October.
