S
M
T
W
T
F
S
27
75°
41°
28
69°
42°
29
62°
41°
30
62°
37°
1
65°
41°
2
62°
43°
3
57°
28°
4
68°
41°
5
58°
30°
6
Hist. Avg.
60°
38°
7
Hist. Avg.
60°
37°
8
Hist. Avg.
59°
37°
9
Hist. Avg.
58°
36°
10
Hist. Avg.
58°
36°
11
Hist. Avg.
58°
35°
12
Hist. Avg.
57°
35°
13
Hist. Avg.
56°
35°
14
Hist. Avg.
56°
34°
15
Hist. Avg.
56°
34°
16
Hist. Avg.
55°
33°
17
Hist. Avg.
55°
33°
18
Hist. Avg.
54°
33°
19
Hist. Avg.
54°
32°
20
Hist. Avg.
54°
32°
21
Hist. Avg.
53°
32°
22
Hist. Avg.
53°
31°
23
Hist. Avg.
53°
31°
24
Hist. Avg.
52°
31°
25
Hist. Avg.
52°
30°
26
Hist. Avg.
52°
30°
27
Hist. Avg.
51°
30°
28
Hist. Avg.
51°
29°
29
Hist. Avg.
51°
29°
30
Hist. Avg.
50°
29°
31
Hist. Avg.
50°
28°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Keystone
Keystone's October 2026 forecast shows daily high temperatures ranging from 57° to 75°, with overnight lows between 28° and 43°. The average high for October is 64° with an average low of 38°. 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 Keystone. See also: November | December | January.
