S
M
T
W
T
F
S
27
N/A
28
64°
57°
29
72°
57°
30
77°
52°
1
79°
61°
2
84°
57°
3
73°
50°
4
61°
48°
5
72°
43°
6
63°
39°
7
68°
36°
8
75°
45°
9
72°
39°
10
70°
39°
11
59°
50°
12
72°
52°
13
77°
50°
14
79°
57°
15
66°
50°
16
72°
55°
17
55°
37°
18
59°
32°
19
68°
32°
20
70°
34°
21
63°
41°
22
69°
43°
23
59°
35°
24
60°
37°
25
65°
41°
26
69°
46°
27
67°
45°
28
58°
43°
29
59°
42°
30
59°
39°
31
55°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Summit
Summit's October 2026 forecast shows daily high temperatures ranging from 55° to 69°, with overnight lows between 35° and 46°. The average high for October is 62° with an average low of 42°. 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 Summit. See also: November | December | January.