S
M
T
W
T
F
S
27
90°
64°
28
92°
66°
29
92°
65°
30
92°
66°
1
90°
73°
2
92°
73°
3
92°
75°
4
79°
71°
5
83°
66°
6
85°
67°
7
85°
63°
8
85°
64°
9
82°
65°
10
79°
68°
11
83°
67°
12
83°
65°
13
80°
64°
14
81°
61°
15
80°
60°
16
79°
54°
17
75°
59°
18
79°
58°
19
81°
61°
20
81°
60°
21
80°
59°
22
78°
57°
23
74°
52°
24
76°
54°
25
74°
50°
26
76°
57°
27
78°
53°
28
72°
53°
29
75°
56°
30
78°
57°
31
77°
57°
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 72° to 92°, with overnight lows between 50° and 75°. The average high for October is 80° with an average low of 60°. 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.